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Z87C33 Datasheet, PDF (64/72 Pages) Zilog, Inc. – CMOS Z8® MCU Consumer Controller Processor
Z87C33
CMOS Z8“ MCU Consumer Controller Processor
58
Table 39. Additional Timing at Standard Temperature (Continued)
TA = 0ºC to
+70ºC
4 MHz
No Sym
9 TWIH
10 TWSM
Parameter
VCC1 Min Max
Interrupt Request Input 3.0V 3TPC
High Time
5.5V 3TPC
Stop-Mode Recovery 3.0V 12
Width Spec
5.5V 12
Units Notes D1,D0
2,3,5
2,3,5
ns
7
ns
7
11 TOST Oscillator Startup Time 3.0V
5TPC
7,8
5.5 V
5TPC
7,8
12 TWDT
Watch-Dog Timer
Delay Timer before
time-out
3.0V 7
5.5V 3.5
3.0V 14
ms 9
0,0
ms 9
0,0
ms 9
0,1
5.5V 7
ms 9
0,1
3.0V 28
ms 9
1,0
5.5V 14
ms 9
1,0
3.0V 112
ms 9
1,1
5.5V 56
ms 9
1,1
13 TPOR Power-On Reset Delay 3.0V 3
26 ms
5.5V 1.5 13 ms
Notes:
1. The VCC voltage specification of 3.0V guarantees 3.3V ±0.3V, and the VCC voltage
specification of 5.5V guarantees 5.0V ±0.5V.
2. Timing reference uses 0.7 VCC for a logic 1 and 0.2 VCC for a logic 0.
3. SMR: D1 = 0.
4. The maximum frequency for the external crystal clock is 4 MHz when using LOW-EMI OSCIL-
LATOR mode.
5. The interrupt request via Port 3 (P31–P33).
6. The interrupt request via Port 3 (P30).
7. SMR: D5 = 1, and the POR Stop-Mode Delay is on.
8. For RC and LC oscillators, and for an oscillator driven by a clock driver.
9. The D1,D0 column applies to the Watch-Dog Timer Mode Register tap selection.
10. 12 µs is the typical delay time; only applies when SMR Register bit D5 is cleared to 0
The values presented in Table 40 are within the extended temperature range of –
40ºC to 105ºC.
PS015601-1003