ZHCS429J March 2012 – November 2021 UCD3138
PRODUCTION DATA
| FEATURE | UCD3138 64 PIN (RGC) | UCD3138 40 PIN (RHA/RMH/RJA) |
|---|---|---|
| ARM7TDMI-S core processor | 31.25 MHz | 31.25 MHz |
| High resolution dPWM outputs (250-ps resolution) | 8 | 8 |
| Number of high speed independent feedback loops (number of regulated output voltages) | 3 | 3 |
| 12-bit, 267ksps, general-purpose ADC channels | 14 | 7 |
| Digital comparators at ADC outputs | 4 | 4 |
| Flash memory (program) | 32 KB | 32 KB |
| Flash memory (data) | 2 KB | 2 KB |
| Flash security | √ | √ |
| RAM | 4 KB | 4 KB |
| DPWM switching frequency | up to 2 MHz | up to 2 MHz |
| Programmable fault inputs | 4 | 1 + 2(1) |
| High speed analog comparators with cycle-by-cycle current limiting | 7(2) | 6(2) |
| UART (SCI) | 2 | 1(1) |
| PMBus | √ | √ |
| Timers | 4 (16 bit) and 1 (24 bit) | 4 (16 bit) and 1 (24 bit) |
| Timer PWM outputs | 2 | 1 |
| Timer capture inputs | 1 | 1(1) |
| Watchdog | √ | √ |
| On chip oscillator | √ | √ |
| Power-on reset and brown-out reset | √ | √ |
| Package offering | 64 Pin QFN (9 mm × 9 mm) | 40 Pin QFN (6 mm × 6 mm) |
| Sync IN and sync OUT functions | √ | √ |
| Total GPIO (includes all pins with multiplexed functions such as, DPWM, fault inputs, SCI, and so forth) | 30 | 18 |
| External interrupts | 1 | 0 |