AK6440BL Datasheet, PDF (9/13 Pages) Asahi Kasei Microsystems – 4096bit Serial CMOS EEPROM

ASAHI KASEI
[AK6440B]
(2) A.C. ELECTRICAL CHARACTERISTICS
(1.8VVCC5.5V, -40°CTa85°C, unless otherwise specified)
Parameter
SK Cycle Time
SK Pulse Width
SK High Pulse Width
*3
CS Setup Time
Symbol
tSKP1
tSKP2
tSKW1
tSKW2
tSKH1
tSKH2
tSKH3
tCSS
Condition
2.5VVCC5.5V
1.8VVCC2.5V
2.5VVCC5.5V
1.8VVCC2.5V
4.5VVCC5.5V
2.5VVCC4.5V
1.8VVCC2.5V
Min.
500
1.5
250
750
250
500
750
100
Max.
Unit
ns
s
ns
ns
ns
CS Hold Time
tCSH
100
ns
SK Setup Time
RESET Setup Time
tSKSH
/ tSKSL
tRESS
100
ns
0
ns
Data Setup Time
tDIS1
4.5VVCC5.5V
100
ns
tDIS2
1.8VVCC4.5V
200
ns
Data Hold Time
tDIH1 4.5VVCC5.5V
100
ns
tDIH2 1.8VVCC4.5V
200
ns
DO pin
tPD1
4.5VVCC5.5V, *4
150
ns
Output delay
tPD2
2.5VVCC4.5V, *4
300
ns
tPD3
1.8VVCC2.5V, *4
500
ns
Selftimed Programaing
tE/W
Time
10
ms
Min CS High Time
tCS
250
ns
DO High-Z Time
tOZ
500
ns
*3: tSKH is the high pulse width of 16th SK pulse in READ operation. When the
data in the next address are read sequentially by continuing to provide clock,
tSKH are applied to the high pulse width of 32nd and 48th (multiple of 16) SK
pulse in READ operation.
*4: CL=100pF
DAS03E-01
-9-
2012/09