Z86L7808PSC View Datasheet(PDF) - Zilog
Part Name
Description
MFG CO.
'Z86L7808PSC' PDF : 59 Pages View PDF
Z86L78
IR/Low-Voltage Microcontroller
PIN FUNCTIONS
XTAL1 Crystal 1 (time-based input). This pin connects a
parallel-resonant crystal, ceramic resonator, LC, or RC
network or an external single-phase clock to the on-chip
oscillator input.
XTAL2 Crystal 2 (time-based output). This pin connects a
parallel-resonant, crystal, ceramic resonant, LC, or RC
network to the on-chip oscillator output.
Port 0 (P07 and 00). Port 0 is an 2-bit, bidirectional,
CMOS-compatible port. These two I/O lines are configured
Zilog
under software control, and the output drivers are push-
pull.
If one or both bits are needed for I/O operation, they must
be configured by writing to the Port 0 mode register. After
a hardware reset, Port 0 is configured as an input port.
An optional 200 KOhm pull-up is available as a mask op-
tion on P07 and P00.
These pull-ups are disabled when configured (bit by
bit) as outputs.
1
Z86L78
MCU
1
Port 0
OEN
Out
In
2-14
Mask
Option
200 kΩ
PAD
Figure 9. Port 0 Configuration
DS97LVO0701
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