HT1612 Holtek Semiconductor, HT1612 Datasheet - Page 11

• Manufacturer Part Number: HT1612
• Description: Timer
• Manufacturer: Holtek Semiconductor

HT1612
For instrument or C use (1.5V supply)
The IC substrate should be connected to VDD in the PCB layout artwork.
Note:
1. To drive the SK, DI, and HK pin, an open drain NMOS output structure is recommended.
2. To drive the SK, DI and HK pin with CMOS output structure, a voltage divider is needed
(R=4.3K, R1=10K).
11
5th July ’95