Z86C72 Datasheet, PDF (59/71 Pages) Zilog, Inc. – IR MICROCONTROLLER

Zilog
Z86C72/C92/L72/L92
IR Microcontroller
/RESET
5 Clock
Filter
* /CLR 2
CLK
18 Clock RESET
Generator
RESET
CK Source
Select
(WDTMR)
XTAL
VDD
VBO/VLV
2V REF.
M
U
INTERNAL
RC
X
OSC.
Low Operating
+ ^{Voltage Det.}
-
WDT TAP SELECT
POR/WDT ₁
2
3
4
CLK _{/CLR1 WDT/POR Counter Chain}
WDT
From Stop
Mode
Recovery
Source
12 ns Glitch Filter
Stop Delay
Select (SMR)
* /CLR1 and /CLR2 enable the WDT/POR and
18 Clock Reset timers upon a Low to High input translation.
VCC
Figure 43. Resets and WDT
1
Internal
RESET
Active
High
DS97LVO0900
PRELIMINARY
6-59