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參數(shù)資料
| 型號(hào)： | SN74LS243DR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 總線收發(fā)器 |
| 英文描述： | LS SERIES, QUAD 4-BIT TRANSCEIVER, TRUE OUTPUT, PDSO14 |
| 封裝： | GREEN, PLASTIC, MS-012AB, SOIC-14 |
| 文件頁數(shù)： | 8/13頁 |
| 文件大?。?/td> | 487K |
| 代理商： | SN74LS243DR |
ELECTRICAL CHARACTERISTICS
SWITCHING CHARACTERISTICS
SDLS145A – APRIL 1985 – REVISED JULY 2008 ............................................................................................................................................................. www.ti.com
over operating free-air temperature range (unless otherwise noted)
SN54LS243
SN74LS243
PARAMETER
TEST CONDITIONS(1)
UNIT
MIN
TYP(2)
MAX
MIN
TYP(2)
MAX
VIK
A or B
VCC = MIN,
II = –18 mA
–1.5
V
Hysteresis (VT+ – VT–)
VCC = MIN,
0.2
0.4
0.2
0.4
V
VIL = MAX,
2.4
3.1
2.4
3.1
V
IOH = –3 mA
VOH
VCC = MIN,
VIH = 2 V,
VIL = 0.5 V,
2
IOH = MAX
VIH = 2 V,
IOL = 12 mA
0.25
0.4
0.25
0.4
VCC = MIN,
VOL
V
VIL = MAX
IOL = 24 mA
0.35
0.5
VCC = MIN,
VIH = 2 V,
VO = 2.7 V
IOZH
40
A
VIL = MAX,
VCC = MIN,
VIH = 2 V,
VO = 0.4 V
IOZL
–200
A
VIL = MAX,
A or B
VI = 5.5 V
0.1
II
VCC = MAX,
mA
GAB or GBA
VI = 7 V
0.1
IIH
VCC = MAX,
20
A
VCC = MAX, VI = 0.4 V,
A inputs
–0.2
GAB and GBA at 0 V
IIL
VCC = MAX, VI = 0.4 V,
mA
B inputs
–0.2
GAB and GBA at 4.5 V
GAB or GBA
VCC = MAX, VI = 0.4 V,
–0.2
IOS
VCC = MAX
–40
–225
–40
–225
mA
Outputs high
22
38
22
38
Outputs low
VCC = MAX,
29
50
29
50
ICC
Outputs open,
mA
(3)
All outputs
32
54
32
54
disabled
(1)
For conditions shown as MIN or MAX, use the appropriate value specified under "recommended operating conditions."
(2)
All typical values are at VCC = 5 V, TA = 25°C.
(3)
ICC is measured with transceivers eabled in one direction only, or with all transceivers disabled.
VCC = 5 V, TA = 25°C
SN54LS243
SN74LS243
PARAMETER
TEST CONDITIONS
UNIT
MIN
TYP
MAX
MIN
TYP
MAX
tPLH
9
14
12
18
ns
tPHL
12
18
12
18
ns
RL = 667 ,
CL = 45 pF
tPZL
20
30
20
30
ns
tPZH
15
23
15
23
ns
tPLZ
10
20
10
20
ns
RL = 667 ,
CL = 5 pF
tPHZ
15
25
15
25
ns
4
Copyright 1985–2008, Texas Instruments Incorporated
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| SN74LS243J | 制造商:Motorola Inc 功能描述: |
| SN74LS243N | 功能描述:總線收發(fā)器 Quad bus transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
| SN74LS243NE4 | 功能描述:總線收發(fā)器 Quad bus transceiver RoHS:否 制造商:Fairchild Semiconductor 邏輯類型:CMOS 邏輯系列:74VCX 每芯片的通道數(shù)量:16 輸入電平:CMOS 輸出電平:CMOS 輸出類型:3-State 高電平輸出電流:- 24 mA 低電平輸出電流:24 mA 傳播延遲時(shí)間:6.2 ns 電源電壓-最大:2.7 V, 3.6 V 電源電壓-最小:1.65 V, 2.3 V 最大工作溫度:+ 85 C 封裝 / 箱體:TSSOP-48 封裝:Reel |
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