HT1380A HOLTEK [Holtek Semiconductor Inc], HT1380A Datasheet - Page 4

• Manufacturer Part Number: HT1380A
• Description: Serial Timekeeper Chip
• Manufacturer: HOLTEK [Holtek Semiconductor Inc]

A.C. Characteristics
Rev. 1.00
t
t
t
t
t
f
t
t
t
t
t
Symbol
DC
CDH
CDD
CL
CH
SCLK
r
CC
CCH
CWH
CDZ
/t
f
Data to Clock Setup
Clock to Data Hold
Clock to Data Delay
Clock Low Time
Clock High Time
Clock Frequency
Clock Rise and Fall Time
Reset to Clock Setup
Clock to Reset Hold
Reset Inactive Time
Reset to I/O High Impedance
Parameter
V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
2V
3V
5V
DD
Test Conditions
4
Conditions
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
1000
1000
Min.
200
100
280
140
500
250
500
250
240
120
50
70
—
—
—
—
—
—
—
—
—
60
—
—
—
4
2
1
4
2
1
HT1380A/HT1381A
Typ.
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Max.
2000
1000
800
400
200
500
280
140
0.5
1.0
2.0
70
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
June 15, 2012
Ta=25˚C
MHz
Unit
ns
ns
ns
ns
ns
ns
μs
ns
μs
ns