IS43DR32800A-37CBLI-TR ISSI, IS43DR32800A-37CBLI-TR Datasheet - Page 9

• Manufacturer Part Number: IS43DR32800A-37CBLI-TR
• Description: DRAM 256M (8Mx32) 266MHz DDR2 1.8v
• Manufacturer: ISSI

Specifications of IS43DR32800A-37CBLI-TR

• Product Category: DRAM
• Rohs: yes
• Factory Pack Quantity: 1500

IS43DR32800A, IS43/46DR32801A
Differential input AC Logic Level
Notes:
1. VID(AC) specifies the input differential voltage |VTR -VCP | required for switching, where VTR is the true input signal (such as CK, DQS and
2. The typical value of VIX(AC) is expected to be about 0.5 x VDDQ of the transmitting device and VIX(AC) is expected to track variations in
3. Refer to Overshoot/undershoot specifications for Vpeak value: maximum peak amplitude allowed for overshoot and undershoot.
Differential signal levels
Differential AC Output Parameters
Note:
1. The typical value of VOX(AC) is expected to be about 0.5 x VDDQ of the transmitting device and VOX(AC) is expected to track variations in
Integrated Silicon Solution, Inc. — www.issi.com
Rev. 00E
09/08/2010
Symbol
VID (ac)
VIX (ac)
Symbol
VOX (ac) ac differential crosspoint voltage
VCP is the complementary input signal (such as CK or DQS). The minimum value is equal to VIH(AC) - VIL(AC).
VDDQ. VIX(AC) indicates the voltage at which differential input signals must cross.
VDDQ. VOX(AC) indicates the voltage at which differential output signals must cross.
V
V
CP
TR
Parameter
Parameter
ac differential input voltage
ac differential crosspoint voltage
V
V
DDQ
SSQ
V
ID
Min.
0.5 x VDDQ - 0.125
Min.
0.5
0.5 x VDDQ - 0.175
V
IX or
Crossing point
V
OX
Max.
0.5 x VDDQ + 0.125
Max.
VDDQ
0.5 x VDDQ + 0.175
Units Notes
Units
V
V
V
1
Notes
1,3
2
9