HEF4534B is Real time 5-decade counter manufactured by NXP Semiconductors.
| Part Number | Description |
|---|---|
| HEF4531B | 13-input parity checker/generator |
| HEF4532B | 8-input priority encoder |
| HEF4538B | Dual precision monostable multivibrator |
| HEF4539B | Dual 4-input multiplexer |
| HEF4502B | Strobed hex inverter/buffer |
The HEF4534B is a 5-decade ripple counter. The binary outputs of the decade counters are time-multiplexed by an internal scanner on four BCD outputs (O0 to O3). The selected decade is indicated by a logic HIGH on the appropriate digit select output (OS0:.
