Z86C90 Datasheet, PDF (12/14 Pages) Zilog, Inc. – ROMLESS CMOS Z8 8-BIT MICROCONTROLLER

AC CHARACTERISTICS
Additional Timing Table (Continued)
No Symbol Parameter
V
CC
Note[6]
T
A
=
0°C
to
70°C
8 MHz
12 MHz
Min Max Min Max
11 Tost Oscillator
3.3V
Startup Time
5.0V
12 Twdt Watchdog Timer 3.3V
[5]
Delay Time
5.0V
[5]
3.3V
[5]
5.0V
[5]
5TpC
5TpC
10
5
30
15
5TpC
5TpC
10
5
30
15
[5]
3.3V 50
50
5.0V 25
25
[5]
3.3V 200
200
[5]
5.0V 100
100
[5]
T
A
=
-40°C
to
105°C
Units
8 MHz
12 MHz
Min Max Min Max
5TpC
5TpC
10
5TpC
5TpC
10
ms
Notes
[4]
[4]
D0 = 0
5
5
ms D1 = 0
30
30
ms D0 = 1
15
15
ms D1 = 0
50
50
ms D0 = 0
25
25
ms D1 = 1
200
200
ms D0 = 1
100
100
ms D1 = 1
Notes:
[1] Timing Reference uses 0.9 V_CC for a logic 1 and 0.1 V_CC for a logic 0.
[2] Interrupt request via Port 3 (P31-P33).
[3] Interrupt request via Port 3 (P30).
[4] SMR-D5 = 0
[5] Reg. WDTMR
[6] 5.0V ±0.5V, 3.3V ±0.3V
[7] Reg. SMR - D5=0
[8] Reg. SMR - D5=1
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