ST7282 Datasheet (ST Microelectronics)

ST7282, EPROM

Figure 1.

Block Diagram S 1 6 /P D 7 S 1 5 /P D 6 S 1 4 /P D 5 S 1 3 /P D 4 S 1 2 /P D 3 S 1 1 /P D 2 S 1 0 /P D 1 S 9 /P D 0 S 8 /P F 7 S 7 /P F 6 S 6 /P F 5 S 5 /P F 4 S 4 /P F 3 S 3 /P F 2 S 2 /P F 1 S 1 /P F 0 B P 1 6 /S 0 /P G 7 B P 1 5 /S - 1/P G 6 B P 1 4 /S - 2/P G 5 B P 1 3 /S - 3/P G 4 B

ST7282A5 - ST7282B5 ROM FROM EPROM PRELIMINARY DATASHEET s s ST72-Core Controller/Driver for max.

20 × 16, 28 × 8 or 32 × 4 LCD segments (ST7LCD4) 56 bytes LCD-RAM 864 bytes data RAM 512 bytes EEPROM (eep2a) 32Kbytes program ROM 24 digital I/O (ST7 IO3) with pull up, interrupt input, analog input, push-pull/ open drain output 36 LCD/IO combi pins (ST7 LCIO1) with pull-up, interrupt input, push-pull, open drain output, LCD output 16 bit reload timer (ST7TIM4) Watchdog Timer (ST7 WD2) 8 bit synch