Denon AVR-S710W, Руководство по обслуживанию

Страница: 127 / 169

DIGITAL_HDMI_ADV7623 : IC732
MX25L3206EM2I-12G (except : E2)
MX25L6406EM2I-12G (ONLY E2)
SN74CBT3251PWR (DIGITAL_HDMI_ADV7623 : IC733)
Block diagram
CS# 1
2
3
4
8
7
6
5
SO/SIO1
WP#
GND
VCC
HOLD#
SCLK
SI/SIO0
SYMBOL
CS#
SI/SIO0
SO/SIO1
SCLK
WP#
HOLD#
VCC
GND
Chip Select
Serial Data Input (for 1 x I/O)/ Serial Data
Input & Output (for Dual Output mode)
Serial Data Output (for 1 x I/O)/ Serial Data
Output (for Dual Output mode)
Clock Input
Write protection
+ 3.3V Power Supply
Ground
Hold, to pause the device without
deselecting the device
DESCRIPTION
PIN DESCRIPTION
SN74CBT3251
1-OF-8 FET MULTIPLEXER/DEMULTIPLEXER
SCDS019L − MAY 1995 − REVISED JANUARY 2004
1
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
5-
Ω
Switch Connection Between Two Ports TTL-Compatible Input Levels
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
B4
B3
B2
B1
A
NC
OE
GND
V
CC
B5
B6
B7
B8
S0
S1
S2
D, DB, DBQ, OR PW PACKAGE
(TOP VIEW)
NC − No internal connection
RGY PACKAGE
(TOP VIEW)
1 16
8 9
2
3
4
5
6
7
15
14
13
12
11
10
B5
B6
B7
B8
S0
S1
B3
B2
B1
A
NC
OE
B4
S2
V
GND
CC
NC − No internal connection
description/ordering information
The SN74CBT3251 is a 1-of-8 high-speed TTL-compatible FET multiplexer/demultiplexer. The low on-state
resistance of the switch allows connections to be made with minimal propagation delay.
When output enable (OE) is low, the SN74CBT3251 is enabled. S0, S1, and S2 select one of the B outputs for
the A-input data.
ORDERING INFORMATION
T
A
PACKAGE
†
ORDERABLE
PART NUMBER
TOP-SIDE
MARKING
QFN − RGY Tape and reel SN74CBT3251RGYR CU251
SOIC D
Tube SN74CBT3251D
CBT3251 SOIC − D
Tape and reel SN74CBT3251DR
CBT3251
−40
°
C to 85
°
C
SSOP − DB Tape and reel SN74CBT3251DBR CU251
40 C to 85 C
SSOP (QSOP) − DBQ Tape and reel SN74CBT3251DBQR CU251
TSSOP PW
Tube SN74CBT3251PW
CU251 TSSOP − PW
Tape and reel SN74CBT3251PWR
CU251
†
Package drawings, standard packing quantities, thermal data, symbolization, and PCB design
guidelines are available at www.ti.com/sc/package.
Copyright
©
2004, 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.
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.
SN74CBT3251
1-OF-8 FET MULTIPLEXER/DEMULTIPLEXER
SCDS019L − MAY 1995 − REVISED JANUARY 2004
2
POST OFFICE BOX 655303
•
DALLAS, TEXAS 75265
FUNCTION TABLE
(each multiplexer/demultiplexer)
INPUTS
FUNCTION
OE S2 S1 S0
FUNCTION
L L L L A port = B1 port
L L L H A port = B2 port
L L H L A port = B3 port
L L H H A port = B4 port
L H L L A port = B5 port
L H L H A port = B6 port
L H H L A port = B7 port
L H H H A port = B8 port
H X X X Disconnect
logic diagram (positive logic)
B5
B1 A
B2
B3
B4
B6
B7
B8
OE
S0
S1
S2
5
7
11
10
9
4
3
2
1
15
14
13
12
127