
Rev.2.40 Jun 14, 2004 page 53 of 56
38C1 Group
Reset input “L” pulse width
Main clock input cycle time (XIN input)
Main clock input “H” pulse width
Main clock input “L” pulse width
CNTR0, CNTR1 input cycle time
CNTR0, CNTR1 input “H” pulse width
CNTR0, CNTR1 input “L” pulse width
INT0, INT1 input “H” pulse width
INT0, INT1 input “L” pulse width
Serial I/O clock input cycle time
Serial I/O clock input “H” pulse width
Serial I/O clock input “L” pulse width
Serial I/O input setup time
Serial I/O input hold time
tw(RESET)
tc(XIN)
twH(XIN)
twL(XIN)
tc(CNTR)
twH(CNTR)
twL(CNTR)
twH(INT)
twL(INT)
tc(SCLK)
twH(SCLK)
twL(SCLK)
tsu(SIN-SCLK)
th(SCLK-SIN)
Limits
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Parameter
Min.
2
125
50
50
250
105
105
80
80
1000
400
400
200
200
Typ. Max.
Symbol Unit
Table 20 Timing requirements 2
(Vcc =1.8 to 4.0 V (2.2 to 4.0 V for One Time PROM version), Vss = 0 V, Ta = –20 to 85°C, unless otherwise noted)
Timing Requirements And Switching Characteristics
Table 19 Timing requirements 1
(Vcc = 4.0 to 5.5 V, Vss = 0 V, Ta = –20 to 85°C, unless otherwise noted)
t
w(RESET)
tc(XIN)
twH(XIN)
twL(XIN)
tc(CNTR)
twH(CNTR)
twL(CNTR)
twH(INT)
twL(INT)
tc(SCLK)
twH(SCLK)
twL(SCLK)
tsu(RxD-SCLK)
th(SCLK-RxD)
Limits
µs
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Parameter
Min.
2
125
166
50
70
50
70
1000/VCC
1000/(5✕VCC–8)
tc(CNTR)/2–20
tc(CNTR)/2–20
230
230
2000
950
950
400
200
Typ. Max.
Symbol Unit
Reset input “L” pulse width
Main clock input
cycle time (XIN input)
Main clock input
“H” pulse width
Main clock input
“L” pulse width
CNTR0, CNTR1 input
cycle time
CNTR0, CNTR1 input “H” pulse width
CNTR0, CNTR1 input “L” pulse width
INT0, INT1 input “H” pulse width
INT0, INT1 input “L” pulse width
Serial I/O clock input cycle time
Serial I/O clock input “H” pulse width
Serial I/O clock input “L” pulse width
Serial I/O input setup time
Serial I/O input hold time
2.0 V (One Time PROM version: 2.5 V) ≤ VCC ≤ 4.0 V
VCC ≤ 2.0 V (One Time PROM version: 2.5 V)
2.0 V (One Time PROM version: 2.5 V) ≤ VCC ≤ 4.0 V
VCC ≤ 2.0 V (One Time PROM version: 2.5 V)
2.0 V (One Time PROM version: 2.5 V) ≤ VCC ≤ 4.0 V
VCC ≤ 2.0 V (One Time PROM version: 2.5 V)
2.0 V (One Time PROM version: 2.5 V) ≤ VCC ≤ 4.0 V
VCC ≤ 2.0 V (One Time PROM version: 2.5 V)
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