Harman Kardon DVD 39 Service Manual ▷ View online
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TH2E
KODENSHI KOREA CORP
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harman/kardon
DVD 39/DVD 49 service manual
Page 81 of 113
ESMT
M12L64164A
Elite Semiconductor Memory Technology Inc.
Publication Date: Mar. 2003
Revision: 1.7
1/44
SDRAM
1M x 16 Bit x 4 Banks
Synchronous DRAM
FEATURES
JEDEC standard 3.3V power supply
LVTTL compatible with multiplexed address
Four banks operation
MRS cycle with address key programs
- CAS Latency (2 & 3)
- Burst Length (1, 2, 4, 8 & full page)
- Burst Type (Sequential & Interleave)
- Burst Length (1, 2, 4, 8 & full page)
- Burst Type (Sequential & Interleave)
All inputs are sampled at the positive going edge of the
system clock
system clock
DQM for masking
Auto & self refresh
64ms refresh period (4K cycle)
ORDERING INFORMATION
54 Pin TSOP (Type II)
(400mil x 875mil )
(400mil x 875mil )
PRODUCT NO.
MAX FREQ.
PACKAGE
M12L64164A-6T 166MHz
M12L64164A-7T 143MHz
TSOP II
GENERAL DESCRIPTION
The M12L64164A is 67,108,864 bits synchronous high data rate Dynamic RAM organized as 4 x 1,048,576 words by
16 bits. Synchronous design allows precise cycle controls 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.
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.
PIN ASSIGNMENT
Top View
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
26
27
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
V
DD
DQ0
V
DD Q
DQ1
DQ2
DQ2
V
S S Q
DQ3
DQ4
DQ4
V
DD Q
DQ5
DQ6
DQ6
V
S S Q
DQ7
V
DD
LDQ M
W E
CAS
RAS
RAS
CS
A
13
A
12
A
10
/AP
A
0
A
1
A
2
A
3
V
DD
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
V
SS
DQ15
V
V
S S Q
DQ14
DQ13
V
DQ13
V
DD Q
DQ12
DQ11
V
DQ11
V
S S Q
DQ10
DQ9
V
DQ9
V
DD Q
DQ8
V
V
S S
N C
U D Q M
CLK
CKE
N C
A
U D Q M
CLK
CKE
N C
A
11
A
9
A
8
A
7
A
6
A
5
A
4
V
S S
harman/kardon
DVD 39/DVD 49 service manual
Page 82 of 113
harman/kardon
DVD 39/DVD 49 service manual
Page 83 of 113
SN54AHC541, SN74AHC541
OCTAL BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS261M – DECEMBER 1995 – REVISED JULY 2003
1
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
D
Operating Range 2-V to 5.5-V V
CC
D
Latch-Up Performance Exceeds 250 mA Per
JESD 17
JESD 17
description/ordering information
The ’AHC541 octal buffers/drivers are ideal for
driving bus lines or buffer memory address
registers. These devices feature inputs and
outputs on opposite sides of the package to
facilitate printed circuit board layout.
driving bus lines or buffer memory address
registers. These devices feature inputs and
outputs on opposite sides of the package to
facilitate printed circuit board layout.
The 3-state control gate is a two-input AND gate
with active-low inputs so that if either
output-enable (OE1 or OE2) input is high, all
corresponding outputs are in the high-impedance
state. The outputs provide noninverted data when
they are not in the high-impedance state.
with active-low inputs so that if either
output-enable (OE1 or OE2) input is high, all
corresponding outputs are in the high-impedance
state. The outputs provide noninverted data when
they are not in the high-impedance state.
To ensure the high-impedance state during power
up or power down, OE should be tied to V
up or power down, OE should be tied to V
CC
through a pullup resistor; the minimum value of
the resistor is determined by the current-sinking
capability of the driver.
the resistor is determined by the current-sinking
capability of the driver.
ORDERING INFORMATION
TA
PACKAGE†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
PDIP – N
Tube
SN74AHC541N
SN74AHC541N
SOIC
DW
Tube
SN74AHC541DW
AHC541
SOIC – DW
Tape and reel
SN74AHC541DWR
AHC541
40
°
C to 85
°
C
SOP – NS
Tape and reel
SN74AHC541NSR
AHC541
–40
°
C to 85
°
C
SSOP – DB
Tape and reel
SN74AHC541DBR
HA541
TSSOP
PW
Tube
SN74AHC541PW
HA541
TSSOP – PW
Tape and reel
SN74AHC541PWR
HA541
TVSOP – DGV
Tape and reel
SN74AHC541DGVR
HA541
CDIP – J
Tube
SNJ54AHC541J
SNJ54AHC541J
–55
°
C to 125
°
C
CFP – W
Tube
SNJ54AHC541W
SNJ54AHC541W
LCCC – FK
Tube
SNJ54AHC541FK
SNJ54AHC541FK
† Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines
are available at www.ti.com/sc/package.
Copyright
2003, Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
1
2
3
4
5
6
7
8
9
10
20
19
18
17
16
15
14
13
12
11
OE1
A1
A2
A3
A4
A5
A6
A7
A8
A2
A3
A4
A5
A6
A7
A8
GND
V
CC
OE2
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
SN54AHC541 . . . J OR W PACKAGE
SN74AHC541 . . . DB, DGV, DW, N, NS, OR PW PACKAGE
(TOP VIEW)
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
Y1
Y2
Y3
Y4
Y5
Y2
Y3
Y4
Y5
A3
A4
A5
A6
A7
A4
A5
A6
A7
SN54AHC541 . . . FK PACKAGE
(TOP VIEW)
A2
A1
OE1
Y7
Y6
OE2
A8
GND
Y8
V
CC
On products compliant to MIL-PRF-38535, all parameters are tested
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
unless otherwise noted. On all other products, production
processing does not necessarily include testing of all parameters.
harman/kardon
DVD 39/DVD 49 service manual
Page 84 of 113
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