SDA9251-2X Infineon Technologies Corporation, SDA9251-2X Datasheet - Page 14

• Manufacturer Part Number: SDA9251-2X
• Description: Dynamic Sequential Access Memory For Television Applications (tv-sam)
• Manufacturer: Infineon Technologies Corporation

AC Characteristics (cont’d)
V
Parameter
Refresh period
Transition time
(rise/fall)
L-serial clock time
H-serial clock time
Hold time from SCA
Hold time from SCB
Input capacitance
(SCA, SCB)
Input capacitance
(all other pins)
Output capacitance
(SQA 0-3, SQB 0-3)
Semiconductor Group
CC
= 5 V
10 %;
T
A
= 0 to 70 C
Symbol
t
t
t
t
t
t
C
C
C
REF
T
SCL
SCH
CAH
CBH
I 1
I 2
Q
min.
2
10
10
6
6
Limit Values
typ.
172
max.
8
10
7
5
7
Unit
ms
ns
ns
ns
ns
ns
pF
pF
pF
Test Condition
Either 256 refresh cycles
or read/write cycles on 212
consecutive row
addresses have to be
performed within the 8 ms
interval to maintain data
Transition times are
measured between
and
See diagram 1
See diagram 2
See diagram 2
See diagram 2
See diagram 3
f
f
f
= 1 MHz
= 1 MHz
= 1 MHz
V
IL
.
SDA 9251-2X
V
IH