Z86L70 Datasheet, PDF (49/61 Pages) Zilog, Inc. – IR/Low-Voltage Microcontroller

Zilog
Z86L70/71/75/C71
IR/Low-Voltage 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
X
RC
OSC.
Low Operating
+ ^{Voltage Det.}
-
WDT TAP SELECT
POR _WDT1 2
3
4
CLK
WDT/POR Counter Chain
*/CLR1
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 transition.
VCC
1
Internal
RESET
Active
High
Figure 38. Resets and WDT
DS97LVO0500
PRELIMINARY
1-49