參數(shù)資料
型號(hào): SN74BCT620AN
廠商: TEXAS INSTRUMENTS INC
元件分類: 總線收發(fā)器
英文描述: BCT/FBT SERIES, 8-BIT TRANSCEIVER, INVERTED OUTPUT, PDIP20
封裝: 0.300 INCH, PLASTIC, DIP-20
文件頁(yè)數(shù): 4/11頁(yè)
文件大?。?/td> 393K
代理商: SN74BCT620AN
SN54BCT620A, SN74BCT620A
OCTAL BUS TRANSCEIVERS
WITH 3STATE OUTPUTS
SCBS001B SEPTEMBER 1987 REVISED NOVEMBER 1993
22
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 772511443
logic symbol
logic diagram (positive logic)
2
A1
B1
EN1
19
EN2
1
2
A1
3
A2
B1
18
4
A3
5
A4
6
A5
7
A6
8
A7
9
A8
B2
17
B3
16
B5
14
B4
15
B6
13
B8
11
B7
12
OEBA
OEAB
1
To Seven Other Channels
OEBA
OEAB
19
1
18
2
1
This symbol is in accordance with ANSI/IEEE Std 91-1984
and IEC Publication 617-12.
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range: Control inputs (see Note 1)
0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
I/O ports (see Note 1)
0.5 V to 5.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Voltage range applied to any output in the disabled or power-off state, VO
0.5 V to 5.5 V
. . . . . . . . . . . . . . .
Voltage range applied to any output in the high state, VO
0.5 V to VCC
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK
30 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Current into any output in the low state: SN54BCT620A
96 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74BCT620A
128 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Operating free-air temperature range:
SN54BCT620A
55
°C to 125°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
SN74BCT620A
0
°C to 70°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range
65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTE 1: The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
recommended operating conditions
SN54BCT620A
SN74BCT620A
UNIT
MIN
NOM
MAX
MIN
NOM
MAX
UNIT
VCC
Supply voltage
4.5
5
5.5
4.5
5
5.5
V
VIH
High-level input voltage
2
V
VIL
Low-level input voltage
0.8
V
IIK
Input clamp current
18
mA
IOH
High-level output current
A port
3
mA
IOH
High-level output current
B port
12
15
mA
IOL
Low-level output current
A port
20
24
mA
IOL
Low-level output current
B port
48
64
mA
TA
Operating free-air temperature
55
125
0
70
°C
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