128Mb: x16, x32 Mobile SDRAM
Features
Mobile SDRAM
MT48LC8M16LF, MT48V8M16LF, MT48LC4M32LF, MT48V4M32LF
Features
Options
• Temperature-compensated self refresh (TCSR)
• Fully synchronous; all signals registered on positive
edge of system clock
• Internal pipelined operation; column address can be
changed every clock cycle
• Internal banks for hiding row access/precharge
• Programmable burst lengths: 1, 2, 4, 8, or full page
• Auto precharge, includes concurrent auto precharge,
and auto refresh modes
• Self refresh mode; standard and low power (not
available on AT devices)
• Auto refresh
– 64ms, 4,096-cycle refresh (15.6µs/row)
(commercial and industrial)
– 16ms, 4,096-cycle refresh (3.9µs/row)
(automotive)
• LVTTL-compatible inputs and outputs
• Low voltage power supply
• Partial-array self refresh (PASR) power-saving mode
• VDD/VDDQ
– 3.3V/3.3V
– 2.5V/2.5–1.8V
• Configurations
– 8 Meg x 16 (2 Meg x 16 x 4 banks)
– 4 Meg x 32 (1 Meg x 32 x 4 banks)
• Package/ball out
– 54-ball VFBGA (8mm x 8mm)1
– 54-ball VFBGA (8mm x 8mm)1 Pb-free
– 90-ball VFBGA (8mm x 13mm)2
– 90-ball VFBGA (8mm x 13mm)2 Pb-free
– 54-pin TSOP II (400 mil)
– 54-pin TSOP II (400 mil) Pb-free
• Timing (cycle time)
– 7.5ns @ CL = 3 (133 MHz)
– 8ns @ CL = 3 (125 MHz)
– 10ns @ CL = 3 (100 MHz)
• Temperature
– Commercial (0°C to +70°C)
– Industrial (–40°C to +85°C)
– Automotive (–40°C to +105°C)
• Design revision
Notes: 1. x16 only.
2. x32 only.
3. Contact Micron for availability.
Table 1:
Key Timing Parameters
CL = CAS (READ) latency
Access Time
Speed
Clock
Grade Frequency CL = 1 CL = 2 CL = 3 tRCD
-75M
-8
-10
-75M
-8
-10
-8
-10
133 MHz
125 MHz
100 MHz
100 MHz
100 MHz
83 MHz
50 MHz
40 MHz
–
–
–
–
–
–
19ns
22ns
–
–
–
6
8ns
8ns
–
–
5.4
7ns
7ns
–
–
–
–
–
19ns
20ns
20ns
19ns
20ns
20ns
20ns
20ns
tRP
19ns
20ns
20ns
19ns
20ns
20ns
20ns
20ns
Table 2:
Mark
LC
V
8M16
4M32
F4
B4
F5
B5
TG3
P3
-75M3
-8
-103
None
IT
AT3
:G
Configurations
8 Meg x 16
Configuration
Refresh count
Row addressing
Bank addressing
Column
addressing
4 Meg x 32
2 Meg x 16 x 4
banks
4K
4K (A0–A11)
4 (BA0, BA1)
512 (A0–A8)
1 Meg x 32 x 4
banks
4K
4K (A0–A11)
4 (BA0, BA1)
256 (A0–A7)
Part Number Example:
MT48V8M16LFB4-8:G
PDF: 09005aef807f4885/Source: 09005aef8071a76b
128Mbx16x32Mobile_1.fm - Rev. M 1/09 EN
1
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2001 Micron Technology, Inc. All rights reserved.
Products and specifications discussed herein are subject to change by Micron without notice.