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The PEX-TMC12A utilizes the PCI Express bus and is designed as an easy replacement for the PCI-TMC12A series without requiring any modification to either the software or the driver.
The PEX-TMC12A provides twelve 16-bit timers/counters (four 82C54 chips x 3 timers/counters), 16 TTL digital input channels and 16 TTL digital output channels. The two onboard clocks (8 M/1.6 M and 0.8 M/80 K) are jumper selectable and provide a highresolution clock source for timers/counters. Counters/timers can be used for industrial and laboratory applications such as pulse/ event/switch-toggle counting, frequency readings, elapsed time measurement, pulse-width measurement, PWM (pulse-widthmodulated) output, and pulse (square wave) and rate generation, etc.
The PEX-TMC12A includes a Card ID switch that enables the board to be easily recognized via software if two or more cards are installed in the same computer.

| Hardware | |
|---|---|
| Card ID | Yes (4-bit) |
| Connector |
Female DB37 x 1 20-pin box header x 2 |
| Digital Input | |
|---|---|
| Channels | 16 |
| Type | 5 V/TTL |
| ON Voltage Level | 2.0 V Min. |
| OFF Voltage Level | 0.8 V Max. |
| Response Speed | 500 kHz (Typical) |
| Trigger Mode | Static Update |
| Digital Output | |
|---|---|
| Channels | 16 |
| Type | 5 V/TTL |
| Operation Mode | Static Update |
| Load Voltage |
Logic 0: 0.4 V Max. Logic 1: 2.4 V Min. |
| Load Current |
Sink: 24 mA @ 0.8 V Source: 15 mA @ 2.0 V |
| Response Speed | 500 kHz |
| Timer/Counter/Frequency | |
|---|---|
| Channels | 12 |
| Type | 5 V/TTL (82C54 compatible timer) |
| Resolution | 16-bit |
| Input Frequency | 10 MHz max. |
| Reference Clock | Internal: 8 MHz |
| PC Bus | |
|---|---|
| Type | PCI Express x 1 |
| Data Bus | 16-bit |
| Power | |
|---|---|
| Consumption | 500 mA @ +5 V |
| Mechanical | |
|---|---|
| Dimensions (mm) | 108.71 x 151.36 x 22 (W x L x D) |
| Environment | |
|---|---|
| Operating Temperature | 0 ~ +60°C |
| Storage Temperature | -20 ~ +70°C |
| Humidity | 5 ~ 85% RH, Non-condensing |
The PEX-TMC12A utilizes the PCI Express bus and is designed as an easy replacement for the PCI-TMC12A series without requiring any modification to either the software or the driver.
The PEX-TMC12A provides twelve 16-bit timers/counters (four 82C54 chips x 3 timers/counters), 16 TTL digital input channels and 16 TTL digital output channels. The two onboard clocks (8 M/1.6 M and 0.8 M/80 K) are jumper selectable and provide a highresolution clock source for timers/counters. Counters/timers can be used for industrial and laboratory applications such as pulse/ event/switch-toggle counting, frequency readings, elapsed time measurement, pulse-width measurement, PWM (pulse-widthmodulated) output, and pulse (square wave) and rate generation, etc.
The PEX-TMC12A includes a Card ID switch that enables the board to be easily recognized via software if two or more cards are installed in the same computer.

| Hardware | |
|---|---|
| Card ID | Yes (4-bit) |
| Connector |
Female DB37 x 1 20-pin box header x 2 |
| Digital Input | |
|---|---|
| Channels | 16 |
| Type | 5 V/TTL |
| ON Voltage Level | 2.0 V Min. |
| OFF Voltage Level | 0.8 V Max. |
| Response Speed | 500 kHz (Typical) |
| Trigger Mode | Static Update |
| Digital Output | |
|---|---|
| Channels | 16 |
| Type | 5 V/TTL |
| Operation Mode | Static Update |
| Load Voltage |
Logic 0: 0.4 V Max. Logic 1: 2.4 V Min. |
| Load Current |
Sink: 24 mA @ 0.8 V Source: 15 mA @ 2.0 V |
| Response Speed | 500 kHz |
| Timer/Counter/Frequency | |
|---|---|
| Channels | 12 |
| Type | 5 V/TTL (82C54 compatible timer) |
| Resolution | 16-bit |
| Input Frequency | 10 MHz max. |
| Reference Clock | Internal: 8 MHz |
| PC Bus | |
|---|---|
| Type | PCI Express x 1 |
| Data Bus | 16-bit |
| Power | |
|---|---|
| Consumption | 500 mA @ +5 V |
| Mechanical | |
|---|---|
| Dimensions (mm) | 108.71 x 151.36 x 22 (W x L x D) |
| Environment | |
|---|---|
| Operating Temperature | 0 ~ +60°C |
| Storage Temperature | -20 ~ +70°C |
| Humidity | 5 ~ 85% RH, Non-condensing |