Z86C21 Datasheet, PDF (7/35 Pages) Zilog, Inc. – 8K ROM Z8 CMOS MICROCONTROLLER

4
Z86C21
4
MCU
Port 0 (I/O)
Handshake Controls
/DAV0 and RDY0
(P32 and P35)
Z86C21 MCU
WITH 8K ROM
OEN
PAD
Out
TTL Level Shifter
In
R ≈ 500 KΩ
Figure 5. Port 0 Configuration
Auto Latch
7