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參數資料
| 型號： | MC74LCX138SD |
| 廠商： | ON SEMICONDUCTOR |
| 元件分類： | 通用總線功能 |
| 英文描述： | LOW-VOLTAGE CMOS DECODER/DEMULTIPLEXER |
| 中文描述： | LVC/LCX/Z SERIES, OTHER DECODER/DRIVER, INVERTED OUTPUT, PDSO16 |
| 封裝： | PLASTIC, SSOP-16 |
| 文件頁數： | 1/8頁 |
| 文件大小： | 162K |
| 代理商： | MC74LCX138SD |
SEMICONDUCTOR TECHNICAL DATA
1
REV 1
Motorola, Inc. 1996
11/96
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The MC74LCX138 is a high performance, 1–of–8 decoder/
demultiplexer operating from a 2.7 to 3.6V supply. High impedance TTL
compatible inputs significantly reduce current loading to input drivers
while TTL compatible outputs offer improved switching noise
performance. A VI specification of 5.5V allows MC74LCX138 inputs to be
safely driven from 5V devices. The MC74LCX138 is suitable for memory
address decoding and other TTL level bus oriented applications.
The MC74LCX138 high–speed 1–of–8 decoder/demultiplexer accepts
three binary weighted inputs (A0, A1, A2) and, when enabled, provides
eight mutually exclusive active–LOW outputs (O0–O7). The LCX138
features three Enable inputs, two active–LOW (E1, E2) and one
active–HIGH (E3). All outputs will be HIGH unless E1 and E2 are LOW,
and E3 is HIGH. This multiple enabled function allows easy parallel
expansion of the device to a 1–of–32 (5 lines to 32 lines) decoder with just
four LCX138 devices and one inverter (See Figure 1). The LCX138 can
be used as an 8–output demultiplexer by using one of the active–LOW
Enable inputs as the data input and the other Enable inputs as strobes.
The Enable inputs which are not used must be permanently tied to their
appropriate active–HIGH or active–LOW state.
Current drive capability is 24mA at the outputs.
Designed for 2.7 to 3.6V VCC Operation
5V Tolerant Inputs — Interface Capability With 5V TTL Logic
LVTTL Compatible
LVCMOS Compatible
24mA Balanced Output Sink and Source Capability
Near Zero Static Supply Current (10
μ
A) Substantially Reduces System
Power Requirements
Latchup Performance Exceeds 500mA
ESD Performance: Human Body Model >2000V; Machine Model >200V
15
16
14
13
12
11
10
2
1
3
4
5
6
7
VCC
9
8
O0
O1
O2
O3
O4
O5
O6
A0
A1
A2
E1
E2
E3
O7
GND
Pinout: 16–Lead Plastic Package
(Top View)
M SUFFIX
PLASTIC SOIC EIAJ
CASE 966–01
16
1
LOW–VOLTAGE CMOS
DECODER/DEMULTIPLEXER
D SUFFIX
PLASTIC SOIC
CASE 751B–05
DT SUFFIX
PLASTIC TSSOP
CASE 948F–01
16
1
16
1
PIN NAMES
Function
Address Inputs
Enable Inputs
Enable Input
Outputs
Pins
A0–A2
E1–E2
E3
O0–O7
SD SUFFIX
PLASTIC SSOP
CASE 940B–03
16
1
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| MC74LCX139D | 功能描述:編碼器、解碼器、復用器和解復用器 2-3.6V Dual 2 to 4 RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| MC74LCX139DR2 | 功能描述:編碼器、解碼器、復用器和解復用器 2-3.6V Dual 2 to 4 RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| MC74LCX139DR2G | 功能描述:編碼器、解碼器、復用器和解復用器 2-3.6V Dual 2 to 4 Decoder RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| MC74LCX139DT | 功能描述:編碼器、解碼器、復用器和解復用器 2-3.6V Dual 2 to 4 RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
| MC74LCX139DTG | 功能描述:編碼器、解碼器、復用器和解復用器 2-3.6V Dual 2 to 4 Decoder RoHS:否 制造商:Micrel 產品:Multiplexers 邏輯系列:CMOS 位數: 線路數量（輸入/輸出）:2 / 12 傳播延遲時間:350 ps, 400 ps 電源電壓-最大:2.625 V, 3.6 V 電源電壓-最小:2.375 V, 3 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:QFN-44 封裝:Tray |
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