Z90102 Datasheet, PDF (11/36 Pages) Zilog, Inc. – 40-Pin Low-Cost Digital Television Controller

Zilog
Z90102/90103/90104
40-Pin Low-Cost Digital Television Controller
AC CHARACTERISTICS
T_A = 0° C to +70° C; V_CC = +4.5V to +5.5V; F_OSC = 4 MHz
No
Symbol
Parameter
1
TpC
Input Clock Period
2
TrC,TfC
Clock Input Rise and Fall
3
TwC
Input Clock Width
4
TwTinL
Timer Input Low Width
5
TwTinH
Timer Input High Width
6
TpTin
Timer Input Period
7
TrTin,TfTin
Timer Input Rise and Fall
8a
TwIL
Int Req Input Low
8b
TwIL
9
TwIH
Int Request Input High
10
TdPOR
Power On Reset Delay
11
TdLVIRES
Low Voltage Detect to
Internal RESET
Condition
12
TwRES
Reset Minimum Width
13
TdHsOI
HSYNC Start to VOSC
Stop
14
TdHsOh
HSYNC End to VOSC
Start
15
TdWDT
WDT Refresh Time
Notes:
Refer to DC Characteristics for details on switching levels.
Min
250
125
70
3TpC
8TpC
70
3TpC
3TpC
25
200
5TpC
2TpV
Max
1000
15
100
100
3TpV
1TpV
12
1
Unit
ns
ns
ns
ns
ns
ns
ms
ns
ms
DS97TEL1902
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