IS43R32400D-5BL ISSI, Integrated Silicon Solution Inc, IS43R32400D-5BL Datasheet - Page 30

• Manufacturer Part Number: IS43R32400D-5BL
• Manufacturer: ISSI, Integrated Silicon Solution Inc
• Type: DDR SDRAMr

Specifications of IS43R32400D-5BL

• Organization: 4Mx32
• Density: 128Mb
• Address Bus: 14b
• Access Time (max): 700ps
• Maximum Clock Rate: 200MHz
• Operating Supply Voltage (typ): 2.6V
• Operating Temp Range: 0C to 70C
• Operating Supply Voltage (max): 2.7V
• Operating Supply Voltage (min): 2.5V
• Supply Current: 185mA
• Pin Count: 144
• Mounting: Surface Mount
• Operating Temperature Classification: Commercial
• Lead Free Status / RoHS Status: Compliant

IS43R32400D, IS43R16800D
TRUTH TABLE - CKE
30
CKEn-1 CKEn
L
L
L
L
H
H
H
H
NOTE:
1. CKEn is the logic state of CKE at clock edge n; CKEn--1 was the state of CKE at the previous clock edge.
2. Current state is the state of the DDR SDRAM immediately prior to clock edge n.
3. COMMANDn is the command registered at clock edge n, and ACTIONn is a result of COMMANDn.
4. All states and sequences not shown are illegal or reserved.
5. DESELECT or NOP commands should be issued on any clock edges occurring during the tXSNR or tXSRD period. A mini-
6. Operation or timing that is not specified is illegal and after such an event, in order to guarantee proper operation, the DRAM
7. VREF must be maintained during Self Refresh operation.
mum of 200 clock cycles is needed before applying any executable command, for the DLL to lock.
must be powered down and then restarted through the specified initialization sequence before normal operation can continue.
L
L
H
H
L
L
L
H
CURRENT STATE COMMANDn
Power-Down
Self Refresh
Power-Down
Self Refresh
All Banks Idle
Bank(s) Active
All Banks Idle
X
X
DESELECT or NOP
DESELECT or NOP
DESELECT or NOP
DESELECT or NOP
AUTO REFRESH
See next Truth Table
ACTIONn
Maintain Power-Down
Maintain Self Refresh
Exit Power-Down
Exit Self Refresh
Precharge Power- Down Entry
Active Power-Down Entry
Self Refresh Entry
Integrated Silicon Solution, Inc.
NOTES
7
5, 7
Rev. 00D
06/22/09