
Cpc6128 rom board
bmpc/amstrad_cpc6128_romboard
A ROM Board for the Amstrad CPC 6128 capable of loading two expansion ROMs simultaneously from an SD card.
The SN74HC595N is a shift Register made by Texas Instruments in a DIP-16 package with 16 pins. -40℃~+85℃ 1 26ns@6V,50pF 29MHz 2V~6V 6mA 74HC 8 Serial-to-Serial or Parallel Tri-State DIP-16 Shift Registers ROHS.
PCBKit's library has its KiCad symbol (74xx:74HC595, from KiCad's library) and its footprint (Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, from KiCad's library), ready for a KiCad board. 427 are in stock at JLCPCB (part C78711). 15 open-source boards in 14 repositories on GitHub use it.
| Parameter | Conditions | As printed | Page |
|---|---|---|---|
| Supply voltage VCC | Over operating free-air temperature range | min -0.5 · max 7 V | 4 |
| Input clamp current IIK | VI < 0 or VI > VCC; maximum magnitude | max 20 mA | 4 |
| Output clamp current IOK | VO < 0 or VO > VCC; maximum magnitude | max 20 mA | 4 |
| Continuous output current IO | VO = 0 to VCC; maximum magnitude | max 35 mA | 4 |
| Continuous current through VCC or GND | Maximum magnitude | max 70 mA | 4 |
| Junction temperature TJ | max 150 °C | 4 | |
| Storage temperature Tstg | min -65 · max 150 °C | 4 | |
| Electrostatic discharge V(ESD) | Human body model (HBM), per ANSI/ESDA/JEDEC JS-001 | max 2000 V | 4 |
| Electrostatic discharge V(ESD) | Charged device model (CDM), per ANSI/ESDA/JEDEC JS-002 | max 1000 V | 4 |
| Supply voltage VCC | SN74HC595; nominal 5 V | min 2 · max 6 V | 4 |
| High-level input voltage VIH | SN74HC595; VCC = 2 V | min 1.5 V | 4 |
| High-level input voltage VIH | SN74HC595; VCC = 4.5 V | min 3.15 V | 4 |
| High-level input voltage VIH | SN74HC595; VCC = 6 V | min 4.2 V | 4 |
| Low-level input voltage VIL | SN74HC595; VCC = 2 V | max 0.5 V | 4 |
| Low-level input voltage VIL | SN74HC595; VCC = 4.5 V | max 1.35 V | 4 |
| Low-level input voltage VIL | SN74HC595; VCC = 6 V | max 1.8 V | 4 |
| Input voltage VI | SN74HC595; maximum VCC | min 0 V | 4 |
| Output voltage VO | SN74HC595; maximum VCC | min 0 V | 4 |
| Input transition rise or fall time Δt/Δv | SN74HC595; VCC = 2 V | max 1000 ns | 4 |
| Input transition rise or fall time Δt/Δv | SN74HC595; VCC = 4.5 V | max 500 ns | 4 |
| Input transition rise or fall time Δt/Δv | SN74HC595; VCC = 6 V | max 400 ns | 4 |
| Operating free-air temperature TA | SN74HC595 | min -40 · max 85 °C | 4 |
| Junction-to-ambient thermal resistance RθJA | SN74HC595; N (PDIP), 16 PINS | typ 67 °C/W | 5 |
| VOH VOH | TA = 25°C; VI = VIH or VIL; IOH = –20 uA; VCC = 2 V | min 1.9 · typ 1.998 V | 5 |
| VOH VOH | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; IOH = –20 uA; VCC = 2 V | min 1.9 V | 5 |
| VOH VOH | TA = 25°C; VI = VIH or VIL; IOH = –20 uA; VCC = 4.5 V | min 4.4 · typ 4.499 V | 5 |
| VOH VOH | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; IOH = –20 uA; VCC = 4.5 V | min 4.4 V | 5 |
| VOH VOH | TA = 25°C; VI = VIH or VIL; IOH = –20 uA; VCC = 6 V | min 5.9 · typ 5.999 V | 5 |
| VOH VOH | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; IOH = –20 uA; VCC = 6 V | min 5.9 V | 5 |
| VOH VOH | TA = 25°C; VI = VIH or VIL; QH′, IOH = –4 mA; VCC = 4.5 V | min 3.98 · typ 4.3 V | 5 |
| VOH VOH | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QH′, IOH = –4 mA; VCC = 4.5 V | min 3.84 V | 5 |
| VOH VOH | TA = 25°C; VI = VIH or VIL; QA – QH, IOH = –6 mA; VCC = 4.5 V | min 3.98 · typ 4.3 V | 5 |
| VOH VOH | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QA – QH, IOH = –6 mA; VCC = 4.5 V | min 3.84 V | 5 |
| VOH VOH | TA = 25°C; VI = VIH or VIL; QH′, IOH = −5.2 mA; VCC = 6 V | min 5.48 · typ 5.8 V | 5 |
| VOH VOH | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QH′, IOH = −5.2 mA; VCC = 6 V | min 5.34 V | 5 |
| VOH VOH | TA = 25°C; VI = VIH or VIL; QA – QH, IOH = –7.8 mA; VCC = 6 V | min 5.48 · typ 5.8 V | 5 |
| VOH VOH | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QA – QH, IOH = –7.8 mA; VCC = 6 V | min 5.34 V | 5 |
| VOL VOL | TA = 25°C; VI = VIH or VIL; IOL = 20 uA; VCC = 2 V | typ 0.002 · max 0.1 V | 5 |
| VOL VOL | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; IOL = 20 uA; VCC = 2 V | max 0.1 V | 5 |
| VOL VOL | TA = 25°C; VI = VIH or VIL; IOL = 20 uA; VCC = 4.5 V | typ 0.001 · max 0.1 V | 5 |
| VOL VOL | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; IOL = 20 uA; VCC = 4.5 V | max 0.1 V | 5 |
| VOL VOL | TA = 25°C; VI = VIH or VIL; IOL = 20 uA; VCC = 6 V | typ 0.001 · max 0.1 V | 5 |
| VOL VOL | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; IOL = 20 uA; VCC = 6 V | max 0.1 V | 5 |
| VOL VOL | TA = 25°C; VI = VIH or VIL; QH′, IOL = 4 mA; VCC = 4.5 V | typ 0.17 · max 0.26 V | 5 |
| VOL VOL | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QH′, IOL = 4 mA; VCC = 4.5 V | max 0.33 V | 5 |
| VOL VOL | TA = 25°C; VI = VIH or VIL; QA – QH, IOL = 6 mA; VCC = 4.5 V | typ 0.17 · max 0.26 V | 5 |
| VOL VOL | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QA – QH, IOL = 6 mA; VCC = 4.5 V | max 0.33 V | 5 |
| VOL VOL | TA = 25°C; VI = VIH or VIL; QH′, IOL = 5.2 mA; VCC = 6 V | typ 0.15 · max 0.26 V | 5 |
| VOL VOL | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QH′, IOL = 5.2 mA; VCC = 6 V | max 0.33 V | 5 |
| VOL VOL | TA = 25°C; VI = VIH or VIL; QA – QH, IOL = 7.8 mA; VCC = 6 V | typ 0.15 · max 0.26 V | 5 |
| VOL VOL | SN74HC595; recommended operating free-air temperature range; VI = VIH or VIL; QA – QH, IOL = 7.8 mA; VCC = 6 V | max 0.33 V | 5 |
| II II | TA = 25°C; VI = VCC or 0; VCC = 6 V; magnitudes of ± values | typ 0.1 · max 100 nA | 5 |
| II II | SN74HC595; recommended operating free-air temperature range; VI = VCC or 0; VCC = 6 V; maximum magnitude | max 1000 nA | 5 |
| IOZ IOZ | TA = 25°C; VO = VCC or 0, QA – QH; VCC = 6 V; magnitudes of ± values | typ 0.01 · max 0.5 uA | 5 |
| IOZ IOZ | SN74HC595; recommended operating free-air temperature range; VO = VCC or 0, QA – QH; VCC = 6 V; maximum magnitude | max 5 uA | 5 |
| ICC ICC | TA = 25°C; VI = VCC or 0, IO = 0; VCC = 6 V | max 8 uA | 5 |
| ICC ICC | SN74HC595; recommended operating free-air temperature range; VI = VCC or 0, IO = 0; VCC = 6 V | max 80 uA | 5 |
| Ci Ci | TA = 25°C; VCC = 2 V to 6 V | typ 3 · max 10 pF | 5 |
| Ci Ci | SN74HC595; recommended operating free-air temperature range; VCC = 2 V to 6 V | max 10 pF | 5 |
| fmax fmax | TA = 25°C; load 50 pF; VCC = 2 V | min 6 · typ 26 MHz | 8 |
| fmax fmax | SN74HC595; recommended operating free-air temperature range; load 50 pF; VCC = 2 V | min 5 MHz | 8 |
| fmax fmax | TA = 25°C; load 50 pF; VCC = 4.5 V | min 31 · typ 38 MHz | 8 |
| fmax fmax | SN74HC595; recommended operating free-air temperature range; load 50 pF; VCC = 4.5 V | min 25 MHz | 8 |
| fmax fmax | TA = 25°C; load 50 pF; VCC = 6 V | min 36 · typ 42 MHz | 8 |
| fmax fmax | SN74HC595; recommended operating free-air temperature range; load 50 pF; VCC = 6 V | min 29 MHz | 8 |
| tpd tpd | TA = 25°C; SRCLK to QH′; load 50 pF; VCC = 2 V | typ 50 · max 160 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; SRCLK to QH′; load 50 pF; VCC = 2 V | max 200 ns | 8 |
| tpd tpd | TA = 25°C; SRCLK to QH′; load 50 pF; VCC = 4.5 V | typ 17 · max 32 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; SRCLK to QH′; load 50 pF; VCC = 4.5 V | max 40 ns | 8 |
| tpd tpd | TA = 25°C; SRCLK to QH′; load 50 pF; VCC = 6 V | typ 14 · max 27 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; SRCLK to QH′; load 50 pF; VCC = 6 V | max 34 ns | 8 |
| tpd tpd | TA = 25°C; RCLK to QA – QH; load 50 pF; VCC = 2 V | typ 50 · max 150 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; RCLK to QA – QH; load 50 pF; VCC = 2 V | max 187 ns | 8 |
| tpd tpd | TA = 25°C; RCLK to QA – QH; load 50 pF; VCC = 4.5 V | typ 17 · max 30 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; RCLK to QA – QH; load 50 pF; VCC = 4.5 V | max 37 ns | 8 |
| tpd tpd | TA = 25°C; RCLK to QA – QH; load 50 pF; VCC = 6 V | typ 14 · max 26 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; RCLK to QA – QH; load 50 pF; VCC = 6 V | max 32 ns | 8 |
| tPHL tPHL | TA = 25°C; SRCLR to QH′; load 50 pF; VCC = 2 V | typ 51 · max 175 ns | 8 |
| tPHL tPHL | SN74HC595; recommended operating free-air temperature range; SRCLR to QH′; load 50 pF; VCC = 2 V | max 219 ns | 8 |
| tPHL tPHL | TA = 25°C; SRCLR to QH′; load 50 pF; VCC = 4.5 V | typ 18 · max 35 ns | 8 |
| tPHL tPHL | SN74HC595; recommended operating free-air temperature range; SRCLR to QH′; load 50 pF; VCC = 4.5 V | max 44 ns | 8 |
| tPHL tPHL | TA = 25°C; SRCLR to QH′; load 50 pF; VCC = 6 V | typ 15 · max 30 ns | 8 |
| tPHL tPHL | SN74HC595; recommended operating free-air temperature range; SRCLR to QH′; load 50 pF; VCC = 6 V | max 37 ns | 8 |
| ten ten | TA = 25°C; OE to QA – QH; load 50 pF; VCC = 2 V | typ 40 · max 150 ns | 8 |
| ten ten | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 50 pF; VCC = 2 V | max 187 ns | 8 |
| ten ten | TA = 25°C; OE to QA – QH; load 50 pF; VCC = 4.5 V | typ 15 · max 30 ns | 8 |
| ten ten | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 50 pF; VCC = 4.5 V | max 37 ns | 8 |
| ten ten | TA = 25°C; OE to QA – QH; load 50 pF; VCC = 6 V | typ 13 · max 26 ns | 8 |
| ten ten | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 50 pF; VCC = 6 V | max 32 ns | 8 |
| tdis tdis | TA = 25°C; OE to QA – QH; load 50 pF; VCC = 2 V | typ 42 · max 200 ns | 8 |
| tdis tdis | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 50 pF; VCC = 2 V | max 250 ns | 8 |
| tdis tdis | TA = 25°C; OE to QA – QH; load 50 pF; VCC = 4.5 V | typ 23 · max 40 ns | 8 |
| tdis tdis | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 50 pF; VCC = 4.5 V | max 50 ns | 8 |
| tdis tdis | TA = 25°C; OE to QA – QH; load 50 pF; VCC = 6 V | typ 20 · max 34 ns | 8 |
| tdis tdis | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 50 pF; VCC = 6 V | max 43 ns | 8 |
| tt tt | TA = 25°C; QA – QH; load 50 pF; VCC = 2 V | typ 28 · max 60 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QA – QH; load 50 pF; VCC = 2 V | max 75 ns | 8 |
| tt tt | TA = 25°C; QA – QH; load 50 pF; VCC = 4.5 V | typ 8 · max 12 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QA – QH; load 50 pF; VCC = 4.5 V | max 15 ns | 8 |
| tt tt | TA = 25°C; QA – QH; load 50 pF; VCC = 6 V | typ 6 · max 10 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QA – QH; load 50 pF; VCC = 6 V | max 13 ns | 8 |
| tt tt | TA = 25°C; QH′; load 50 pF; VCC = 2 V | typ 28 · max 75 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QH′; load 50 pF; VCC = 2 V | max 95 ns | 8 |
| tt tt | TA = 25°C; QH′; load 50 pF; VCC = 4.5 V | typ 8 · max 15 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QH′; load 50 pF; VCC = 4.5 V | max 19 ns | 8 |
| tt tt | TA = 25°C; QH′; load 50 pF; VCC = 6 V | typ 6 · max 13 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QH′; load 50 pF; VCC = 6 V | max 16 ns | 8 |
| tpd tpd | TA = 25°C; RCLK to QA – QH; load 150 pf; VCC = 2 V | typ 60 · max 200 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; RCLK to QA – QH; load 150 pf; VCC = 2 V | max 250 ns | 8 |
| tpd tpd | TA = 25°C; RCLK to QA – QH; load 150 pf; VCC = 4.5 V | typ 22 · max 40 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; RCLK to QA – QH; load 150 pf; VCC = 4.5 V | max 50 ns | 8 |
| tpd tpd | TA = 25°C; RCLK to QA – QH; load 150 pf; VCC = 6 V | typ 19 · max 34 ns | 8 |
| tpd tpd | SN74HC595; recommended operating free-air temperature range; RCLK to QA – QH; load 150 pf; VCC = 6 V | max 43 ns | 8 |
| ten ten | TA = 25°C; OE to QA – QH; load 150 pf; VCC = 2 V | typ 70 · max 200 ns | 8 |
| ten ten | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 150 pf; VCC = 2 V | max 250 ns | 8 |
| ten ten | TA = 25°C; OE to QA – QH; load 150 pf; VCC = 4.5 V | typ 23 · max 40 ns | 8 |
| ten ten | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 150 pf; VCC = 4.5 V | max 50 ns | 8 |
| ten ten | TA = 25°C; OE to QA – QH; load 150 pf; VCC = 6 V | typ 19 · max 34 ns | 8 |
| ten ten | SN74HC595; recommended operating free-air temperature range; OE to QA – QH; load 150 pf; VCC = 6 V | max 43 ns | 8 |
| tt tt | TA = 25°C; QA – QH; load 150 pf; VCC = 2 V | typ 45 · max 210 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QA – QH; load 150 pf; VCC = 2 V | max 265 ns | 8 |
| tt tt | TA = 25°C; QA – QH; load 150 pf; VCC = 4.5 V | typ 17 · max 42 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QA – QH; load 150 pf; VCC = 4.5 V | max 53 ns | 8 |
| tt tt | TA = 25°C; QA – QH; load 150 pf; VCC = 6 V | typ 13 · max 36 ns | 8 |
| tt tt | SN74HC595; recommended operating free-air temperature range; QA – QH; load 150 pf; VCC = 6 V | max 45 ns | 8 |
| Power dissipation capacitance Cpd | TA = 25°C; No load | typ 400 pF | 8 |
| Pin | Name | Type |
|---|---|---|
| 1 | QB | Tri-state |
| 2 | QC | Tri-state |
| 3 | QD | Tri-state |
| 4 | QE | Tri-state |
| 5 | QF | Tri-state |
| 6 | QG | Tri-state |
| 7 | QH | Tri-state |
| 8 | GND | Power in |
| 9 | QH' | Output |
| 10 | SRCLR | Input |
| 11 | SRCLK | Input |
| 12 | RCLK | Input |
| 13 | OE | Input |
| 14 | SER | Input |
| 15 | QA | Tri-state |
| 16 | VCC | Power in |

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<iframe src="https://pcbkit.io/embed/parts/ti/SN74HC595N" title="SN74HC595N in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe><img src="https://pcbkit.io/embed/parts/ti/SN74HC595N.jpg" alt="SN74HC595N" width="1200" height="900">[](https://pcbkit.io/parts/ti/SN74HC595N)Yes. The symbol is 74xx:74HC595 and the footprint Package_DIP:DIP-16_W8.89mm_SMDSocket_LongPads, both drawn on this page. PCBKit places them on a board for you when you design with it.
DIP-16, with 16 pins. Its footprint is drawn on this page.
Texas Instruments publishes it: the Datasheet link on this page opens it.
JLCPCB lists it as part C78711, with 427 in stock; the sellers' links on this page open their listings.
Parts like it in the library: the SN74HC195N by Texas Instruments, the SN74HC595D by Texas Instruments, the SN74HC595PW by Texas Instruments and the SN74HC595DB by Texas Instruments. Check their datasheets: a part that fits the footprint may still differ in its ratings.
15 boards in 14 repositories on GitHub; the most starred are listed on this page, with their KiCad files.