The TC7211AM is a CMOS direct drive, 4-digit, 7-segment display decoder and driver. It features input and digit select data latches, an RC oscillator for backplane drive signal generation, elimination of DC bias to maximize LCD lifetime, a backplane input/output pin for synchronization of cascaded devices, and binary and BCD input decoding to Code B output format.
The TC7211AM is a CMOS 4‑digit, 7‑segment LCD decoder/driver with a built‑in RC oscillator and backplane driver. It provides non‑multiplexed segment outputs, binary and BCD inputs decoded to Code B (0‑9, –, E, H, L, P, blank), and pin‑compatible functionality with the ICM7211AM.
The datasheet includes functional block diagrams, pin configurations, timing diagrams, and extensive electrical specifications such as operating voltage range, current consumption, oscillator and backplane frequencies, and absolute maximum ratings. It also describes input definitions, output assignments, and typical characteristics for reliable LCD operation.
| Operating Voltage Range | 3 V to 6 V |
|---|---|
| High Input Voltage (VIH) | 3 V |
| Low Input Voltage (VIL) | 1 V |
| Operating Temperature Range | -20 °C to +85 °C |
| Storage Temperature Range | -65 °C to +150 °C |
| Lead Temperature (Soldering, 10 s) | +300 °C |
The device operates from 3 V up to 6 V.
It drives a 4‑digit, 7‑segment LCD, providing 28 individual segment drivers.