MT48LC4M32B2P-7IT Micron Technology Inc, MT48LC4M32B2P-7IT Datasheet - Page 37

• Manufacturer Part Number: MT48LC4M32B2P-7IT
• Manufacturer: Micron Technology Inc
• Type: SDRAMr

Specifications of MT48LC4M32B2P-7IT

• Organization: 4Mx32
• Density: 128Mb
• Address Bus: 14b
• Access Time (max): 17/8/5.5ns
• Maximum Clock Rate: 143MHz
• Operating Supply Voltage (typ): 3.3V
• Package Type: TSOP-II
• Operating Temp Range: -40C to 85C
• Operating Supply Voltage (max): 3.6V
• Operating Supply Voltage (min): 3V
• Supply Current: 175mA
• Pin Count: 86
• Mounting: Surface Mount
• Operating Temperature Classification: Industrial
• Lead Free Status / RoHS Status: Compliant

Table 9:
PDF: 09005aef80872800/Source: 09005aef80863355
128MbSDRAMx32_2.fm - Rev. L 1/09 EN
CKE
H
H
L
L
n-1
CKE
H
H
Truth Table – CKE
Notes 1–4 apply to the entire table
L
L
n
Notes:
Reading or writing
Current State
Clock suspend
Clock suspend
All banks idle
All banks idle
Power-down
Power-down
Self refresh
Self refresh
1. CKE
2. Current state is the state of the SDRAM immediately prior to clock edge n.
3. COMMAND
4. All states and sequences not shown are illegal or reserved.
5. Exiting power-down at clock edge n will put the device in the all banks idle state in time for
6. Exiting self refresh at clock edge n will put the device in the all banks idle state once
7. After exiting clock suspend at clock edge n, the device will resume operation and recognize
clock edge.
MAND
clock edge n + 1 (provided that
met. COMMAND INHIBIT or NOP commands should be issued on any clock edges occurring
during the
period.
the next command at clock edge n + 1.
n
is the logic state of CKE at clock edge n; CKE
n
.
t
n
XSR period. A minimum of two NOP commands must be provided during
is the command registered at clock edge n, and ACTION
COMMAND INHIBIT or NOP
COMMAND INHIBIT or NOP
COMMAND INHIBIT or NOP
See Table 10 on page 38
AUTO REFRESH
WRITE or NOP
COMMAND
37
X
X
X
X
t
CKS is met).
n
Micron Technology, Inc., reserves the right to change products or specifications without notice.
n-1
Maintain clock suspend
was the state of CKE at the previous
Maintain power-down
Maintain self refresh
Clock suspend entry
Power-down entry
Exit clock suspend
Exit power-down
self refresh entry
Exit self refresh
ACTION
©2001 Micron Technology, Inc. All rights reserved.
128Mb: x32 SDRAM
Register Definition
n
n
is a result of COM-
Notes
t
XSR is
t
5
6
7
XSR