MT45W8MW16BGX-708 WT TR Micron Technology Inc, MT45W8MW16BGX-708 WT TR Datasheet - Page 23

• Manufacturer Part Number: MT45W8MW16BGX-708 WT TR
• Description: IC PSRAM 128MBIT 70NS 54VFBGA
• Manufacturer: Micron Technology Inc

Specifications of MT45W8MW16BGX-708 WT TR

• Format - Memory: RAM
• Memory Type: PSRAM (Page)
• Memory Size: 128M (8Mx16)
• Speed: 70ns
• Interface: Parallel
• Voltage - Supply: 1.7 V ~ 1.95 V
• Operating Temperature: -30°C ~ 85°C
• Package / Case: 54-VFBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: 557-1010-2

Latency Counter (BCR[13:11])
Default = Three Clock Latency
clocks occur between the beginning of a READ or
WRITE operation and the first data value transferred.
For allowable latency codes, see Tables 6 and 7 on
pages 24 and 25 respectively, and Figures 22 and 23 on
pages 24 and 25 respectively).
Initial Access Latency (BRC[14])
Default = Variable
number of clocks set by the latency counter. However,
WAIT must be monitored to detect delays caused by
collisions with refresh operations.
09005aef80ec6f79 pdf/09005aef80ec6f65 zip
Burst CellularRAM 1.5_128Mb__2.fm - Rev. D 2/05 EN
The latency counter bits determine how many
Variable initial access latency outputs data after the
ASYNC/PAGE/BURST CellularRAM 1.5 MEMORY
23
consistent time that allows for worst-case refresh colli-
sions. The latency counter must be configured to
match the initial latency and the clock frequency. It is
not necessary to monitor WAIT with fixed initial
latency. The burst begins after the number of clock
cycles configured by the latency counter. The burst
will pause (and WAIT will be asserted) at the boundary
of a 128-word row. (See Table 7 and Figure 23 on
page 25.)
Operating Mode (BCR[15])
Default = Asynchronous Operation
burst operation or the default asynchronous mode of
operation.
Fixed initial access latency outputs the first data at a
The operating mode bit selects either synchronous
Micron Technology, Inc., reserves the right to change products or specifications without notice.
©2004 Micron Technology, Inc. All rights reserved.
8 MEG x 16