CMOS SERIAL E2PROM
S-93C46A/56A/66A
n
AC Electrical Characteristics
Table 9
Input pulse voltage
0.1´ VCC to 0.9´ VCC
0.5´ VCC
Output reference voltage
Output load
100pF
Table 10
VCC=4.5 to 5.5V VCC=2.5 to 4.5 V VCC=1.8 to 2.5V
Parameter
Smbl
Unit
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max.
CS setup time
tCSS
tCSH
tCDS
tDS
0.2
0
—
—
—
—
—
—
—
—
—
—
—
—
0.4
0
—
—
—
—
—
—
—
—
—
—
—
—
1.0
0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
2.0
ms
ms
ms
ms
ms
ms
CS hold time
CS deselect time
Data setup time
Data hold time
0.2
0.1
0.1
—
0
—
0.2
0.2
0.2
—
0
—
0.4
0.4
0.4
—
—
2.0
0
—
—
tDH
—
—
Output delay
tPD
0.4
2.0
—
1.0
0.5
—
Clock frequency
Clock pulse width
Output disable time
Output enable time
Programming time
fSK
0.25 MHz
tSKH, tSKL 0.25
1.0
0
—
1.0
1.0
ms
ms
ms
tHZ1, tHZ2
tSV
0
0
0.15
0.15
0.5
0.5
0
0
tPR
—
4.0 10.0
—
4.0 10.0
—
4.0 10.0 ms
tCSS
tCDS
CS
SK
tSKL
tCSH
tSKH
tDS
tDH
tDS tDH
DI
Valid data
Valid data
tPD
tPD
Hi-Z
DO
Hi-Z
tSV
(READ)
tHZ1
tHZ2
Hi-Z
DO
Hi-Z
(VERIFY)
Figure 3 Read Timing
Seiko Instruments Inc.
5
SII [ SEIKO INSTRUMENTS INC ]
