4 Digit Decoder / Driver LCD Module
Product ID: GM-40
The GM-040 series modules are used for those circuits which required to have BCD data decoded and displayed on L.C.D. The GM-040D / DA provide separate digit select inputs to accept multiplexed BCD input. The GM-040M / MA provide data and digit select code input latches controlled by chip select inputs to provide a direct high speed processor interface. The module will provide two different decoder configurations. The GM-040D and GM-040M will decoder the four bit binary inputs into a 7-segment alphanumeric hexadecimal output. (refer to table 1) The GM-040DA and GM-040MA will provide the "Code B" output code, i.e., 0-9, dash, E, H, L, P, blank. (refer to Table 3)
- Supply voltage: 6.5V
- Operating temperature: 0 to 50 Celsius (32 to 122 Fahrenheit)
- Storage temperature: -10 to 80 Celsius (14 to 176 Fahrenheit)
- Model: GM-040D
- Input format: BCD CODE
- Display: Hexadecimal
- Model: GM-040M
- Input format: BCD CODE
- Display: Hexadecimal
- Model: GM-040DA
- Input format: BCD CODE
- Display: Code B
- Model: GM-040MA
- Input format: BCD CODE
- Display: Code B
- 0.5 inch (12.7mm) digit height
- Built in decimal point driver
- Single +5V operation
- CMOS TTL compatible inputs
- Application:
- Display for: Counters, Microprocessor development systems
| Parameter | Symbol | Conditions | MIN | TYP | MAX | UNIT |
|---|---|---|---|---|---|---|
| Operating supply voltage range | Vsupp | N/A | 3 | 5 | 5.5 | V |
| Operating current | Iop | N/A | N/A | 30 | 50 | uA |
| Back plane Frequency | Fbp | N/A | N/A | 180 | N/A | Hz |
| Logical "1" input voltage | V1h | N/A | 3 | N/A | N/A | V |
| Logical "0" input voltage | Vil | N/A | N/A | N/A | 2 | V |
| Input leakage current | Iilk | Terminal 6-13 | N/A | +/-0.1 | +/-1 | uA |
| Input capacitance | Cin | Terminals 6-13 | N/A | 5 | N/A | PF |
| Parameter(GM-040D/DA AC) | Symbol | Conditions | MIN | TYP | MAX | UNIT |
| Chip select active pulse width | Tsa | Refer to timing diagram | 1 | N/A | N/A | Us |
| Data setup time | Tds | N/A | 500 | N/A | N/A | Ns |
| Data hold time | Tdh | N/A | 200 | N/A | N/A | Ns |
| Inter-digit select Time | Tids | N/A | 2 | N/A | N/A | Us |
| Parameter(GM-040M/MA AC) | Symbol | Conditions | MIN | TYP | MAX | UNIT |
| Chip select active pulse width | Tcsa | Other chip select other held active, or both driven together | 200 | N/A | N/A | Ns |
| Data setop time | Tds | N/A | 100 | N/A | N/A | Ns |
| Data hold time | Tdh | N/A | 10 | 0 | N/A | Ns |
| Inter-chip select time | Tics | N/A | 2 | N/A | N/A | Us |
Main Products:
digital panel meter