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HYB39L256160AC-8 Datasheet

  • HYB39L256160AC-8

  • 256 MBit Synchronous Low-Power DRAM

  • 48頁

  • INFINEON   INFINEON

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HYB39L256160AC/T
256MBit 3.3V Mobile-RAM
256 MBit Synchronous Low-Power DRAM
Data Sheet Revision Dec. 2002
Features
鈥?Automatic and Controlled Precharge
Command
-7.5
-8
125
8
6
9.5
6
Units
MHz
ns
ns
ns
ns
133
7.5
5.4
9.5
6
鈥?Programmable Burst Length: 1, 2, 4, 8 and
full page
鈥?Data Mask for byte control
鈥?Auto Refresh (CBR)
鈥?8192 Refresh Cycles / 64ms
鈥?Very low Self Refresh current
鈥?Power Down and Clock Suspend Mode
f
CK,MAX
t
CK3,MIN
t
AC3,MAX
t
CK2,MIN
t
AC2,MAX
鈥?16Mbit x16 organisation
鈥?VDD = VDDQ = 3.3 V
鈥?Fully Synchronous to Positive Clock Edge
鈥?Four Banks controlled by BA0 & BA1
鈥?Programmable
CAS
Latency: 2, 3
鈥?Programmable Wrap Sequence: Sequential
or Interleave
鈥?Random Column Address every CLK
(1-N Rule)
鈥?P-TFBGA-54, with 9 x 6 ball array with
3 depopulated rows, 12 x 8 mm
2
鈥?P-TSOPII-54 alternate package
鈥?Operating Temperature Range
Commerical (0
0
to 70
0
C)
Description
The HYB 39L256160AC Mobile-RAM is a new generation of low power, four bank Synchronous
DRAM鈥檚 organized as 4 banks x 4Mbit x 16. These synchronous Mobile-RAMs achieve high speed
data transfer rates by employing a chip architecture that prefetches multiple bits and then
synchronizes the output data to a system clock.
All of the control, address, data input and output circuits are synchronized with the positive edge of
an externally supplied clock.
Operating the four memory banks in an interleave fashion allows random access operation to occur
at higher rate. A sequential and gapless data rate is possible depending on burst length,
CAS
latency and speed grade of the device.
Auto Refresh (CBR) and Self Refresh operation are supported. The device operates with a single
3.3V
鹵
0.3V power supply.
Compared to conventional SDRAM the self-refresh current is further reduced. The Mobile-RAM
devices are available in FBGA 鈥渃hip-size鈥?or TSOPII packages.
INFINEON Technologies AG
1
2002-12-20

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