Harman Kardon BRUKSANVISNING AVR 255, Руководство по обслуживанию, Страница: 96 / 144

ESMT
M12L16161A
Elite Semiconductor Memory Technology Inc.
Publication Date : May. 2005
Revision : 2.4 2/30
SDRAM 512K x 16Bit x 2Banks
Synchronous DRAM
FEATURES
z
JEDEC standard 3.3V power supply
z LVTTL compatible with multiplexed address
z Dual banks operation
z MRS cycle with address key programs
-
CAS Latency (2 & 3 )
-
Burst Length (1, 2, 4, 8 & full page)
-
Burst Type (Sequential & Interleave)
z All inputs are sampled at the positive going edge of the
system clock
z Burst Read Single-bit Write operation
z DQM for masking
z Auto & self refresh
z 32ms refresh period (2K cycle)
GENERAL DESCRIPTION
The M12L16161A is 16,777,216 bits synchronous high
data rate Dynamic RAM organized as 2 x 524,288 words by
16 bits, fabricated with high performance CMOS technology.
Synchronous design allows precise cycle control with the
use of system clock I/O transactions are possible on every
clock cycle. Range of operating frequencies, programmable
burst length and programmable latencies allow the same
device to be useful for a variety of high bandwidth, high
performance memory system applications.
ORDERING INFORMATION
Part NO. MAX Freq. PACKAGE COMMENTS
M12L16161A-5TG
200MHz
TSOP(II) Pb-free
M12L16161A-7TG
143MHz
TSOP(II) Pb-free
M12L16161A-7BG
143MHz
VFBGA Pb-free
PIN CONFIGURATION (TOP VIEW)
V
DD
DQ0
DQ1
V
SSQ
DQ2
DQ3
V
DDQ
DQ4
DQ5
V
SSQ
DQ6
DQ7
V
DDQ
LDQM
WE
CAS
RAS
CS
BA
A10/AP
A0
A1
A2
A3
V
DD
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25 50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26 V
SS
DQ15
DQ14
V
SSQ
DQ13
DQ12
V
DDQ
DQ11
DQ10
V
SSQ
DQ9
DQ8
V
DDQ
N.C/RFU
UDQM
CLK
CKE
N.C
A9
A8
A7
A6
A5
A4
V
SS
50PIN TSOP(II)
(400mil x 825mil)
(0.8 mm PIN PITCH)
VSS
DQ15
DQ14 VSSQ
DQ13 VDDQ
DQ12 DQ11
DQ10 VSSQ
DQ9
VDDQ
DQ8
NC
NC NC
NC UDQM
NC CLK
CKE NC
A11
A9
A8 A7
A6 A5
VSS A4
DQ0
VDD
VDDQ DQ1
VSSQ DQ2
DQ4 DQ3
VDDQ
DQ5
VSSQ
DQ6
NC DQ7
NC NC
LDQM WE
CAS
NC CS
NC NC
A0 A10
A2
A1
A3 VDD
1 2 3 4 5 6 7
RAS
A
B
C
D
E
F
G
H
J
K
L
M
N
P
R
60 Ball VFBGA
(6.4x10.1mm)
(0.65mm ball pitch)
harman/kardon AVR 255/230 Service Manual
Page 96 of 144