HD6475328-CP10 HITACHI [Hitachi Semiconductor], HD6475328-CP10 Datasheet - Page 457
HD6475328-CP10
Manufacturer Part Number
HD6475328-CP10
Description
original Hitachi CMOS microcomputer unit (MCU)
Manufacturer
HITACHI [Hitachi Semiconductor]
Datasheet
1.HD6475328-CP10.pdf
(459 pages)
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Timing of Entry to Hardware Standby Mode
(1) To preserve RAM contents, drive the RES signal line low 10 system clock cycles before the
(2) When it is not necessary to preserve RAM contents, RES need not be driven low as in (1).
Timing of Exit from Hardware Standby Mode
Drive the RES signal line low approximately 100 ns before the rise of the STBY signal.
fall of the STBY signal.
The RES signal can rise any time after STBY goes low. The minimum necessary time from
STBY low to RES high is 0 ns.
Appendix F Timing of Entry to and Recovery from
STBY
RES
STBY
RES
Hardware Standby Mode
t = 100ns
t
1
449
t
2
t
OSC
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