Z87100 Datasheet, PDF (9/48 Pages) Zilog, Inc. – Wireless Transmitter

Zilog
Z87100
Wireless Transmitter
PIN FUNCTIONS
RC1 (RC Oscillator input). This pin connects an external TMBASE (Time Base Counter Clock Input). This pin
3 ^{RC network or an external single-phase clock to the on- connects an external 32 kHz clock signal to the input of an}
chip RC oscillator.
on-chip Time Base Counter.
RC2 (RC Oscillator output). This pin connects an exter-
nal RC network to the on-chip RC oscillator.
As a mask option, the Z87100 can be configured to initial-
ize ("cold start") using either RC or TMBASE. Consequent-
ly, the Z87100 can be operated with either or both RC and
TMBASE clock sources.
P27
P26
P25
P24
Z87100
P23
P22
P21
P20
Open-Drain
P21-P26 OE
Port 2
P21-P26 OUT
P21-P26 IN
1.5
2.3 Hysteresis
Port 2 (I/O)
P21-P26
PAD
Figure 5. Port 2 Configuration (P21-P26)
DS96WRL0700
PRELIMINARY
3-9