UPD17073 NEC, UPD17073 Datasheet - Page 198
UPD17073
Manufacturer Part Number
UPD17073
Description
4-BIT SINGLE-CHIP MICROCONTROLLER WITH HARDWARE FOR DIGITAL TUNING SYSTEM
Manufacturer
NEC
Datasheet
1.UPD17073.pdf
(226 pages)
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198
(a) When VDD and CE pins rises simultaneously
(b) When CE pin rises in halt status
(c) When CE pin rises after power-ON reset
Basic timer 0 carry
FF setting pulse
Basic timer 0 carry
FF setting pulse
Basic timer 0 carry
FF setting pulse
V
CE
V
CE
DD
DD
Figure 20-6. Relations between Power-ON Reset and CE Reset
V
CE
DD
3 V
0 V
H
L
H
L
3 V
0 V
H
L
H
L
3 V
0 V
H
L
H
L
(T
A
= –20 to +70 C, when CPU, PLL, A/D are operating)
1.8 V
1.8 V
1.8 V
Operation
Operation
stops
stops
Operation
stops
Halt status
125 ms
or more
Power-ON clear voltage
Halt status
Power-ON clear voltage
125 ms
or more
Halt status
Power-ON clear voltage
125 ms
or more
Power-ON reset
Program starts.
Power-ON reset
Program starts.
Power-ON reset
Program starts.
Normal operation
Normal operation
Normal operation
CE reset
Program starts.
PD17072,17073
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