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參數(shù)資料
| 型號： | SN74LS170D |
| 廠商： | MOTOROLA INC |
| 元件分類： | DRAM |
| 英文描述： | 4 x 4 REGISTER FILE OPEN-COLLECTOR |
| 中文描述： | STANDARD SRAM, PDSO16 |
| 封裝： | SOIC-16 |
| 文件頁數(shù)： | 1/4頁 |
| 文件大小： | 107K |
| 代理商： | SN74LS170D |
5-1
FAST AND LS TTL DATA
4 x 4 REGISTER FILE
OPEN-COLLECTOR
The TTL/MSI SN54/74LS170 is a high-speed, low-power 4 x 4 Register
File organized as four words by four bits. Separate read and write inputs, both
address and enable, allow simultaneous read and write operation.
Open-collector outputs make it possible to connect up to 128 outputs in a
wired-AND configuration to increase the word capacity up to 512 words. Any
number of these devices can be operated in parallel to generate an n-bit
length.
The SN54/74LS670 provides a similar function to this device but it features
3-state outputs.
Simultaneous Read/Write Operation
Expandable to 512 Words of n-Bits
Typical Access Time of 20 ns
Low Leakage Open-Collector Outputs for Expansion
Typical Power Dissipation of 125 mW
NOTE:
The Flatpak version
has the same pinouts
(Connection Diagram) as
the Dual In-Line Package.
CONNECTION DIAGRAM DIP
(TOP VIEW)
14
13
12
11
10
9
1
2
3
4
5
6
7
16
15
8
VCC
D2
D1
WA
WB
EW
Q1
ER
Q2
D3
D4
RB
RA
Q4
Q3
GND
PIN NAMES
LOADING
(Note a)
HIGH
LOW
D1–D4
WA, WB
EW
RA, RB
ER
Q1–Q4
Data Inputs
Write Address Inputs
Write Enable (Active LOW) Input
Read Address Inputs
Read Enable (Active LOW) Input
Outputs (Note b)
0.5 U.L.
0.5 U.L.
1.0 U.L.
0.5 U.L.
1.0 U.L.
Open-Collector
0.25 U.L.
0.25 U.L.
0.5 U.L.
0.25 U.L.
0.5 U.L.
5 (2.5) U.L.
NOTES:
a. 1 TTL Unit Load (U.L.) = 40
μ
A HIGH/1.6 mA LOW.
b. The Output LOW drive factor is 2.5 U.L. for Military (54) and 5 U.L. for Commercial (74)
b.
Temperature Ranges. The Output HIGH drive must be supplied by an external resistor to VCC.
SN54/74LS170
4 x 4 REGISTER FILE
OPEN-COLLECTOR
LOW POWER SCHOTTKY
J SUFFIX
CERAMIC
CASE 620-09
N SUFFIX
PLASTIC
CASE 648-08
16
1
16
1
ORDERING INFORMATION
SN54LSXXXJ
SN74LSXXXN
SN74LSXXXD
Ceramic
Plastic
SOIC
16
1
D SUFFIX
SOIC
CASE 751B-03
LOGIC SYMBOL
VCC = PIN 16
GND = PIN 8
12
15
1
2
3
13
14
4
5
11
10 9
7
6
EW
WA
WB
RA
RB
ER
D2D3 D4
D1
Q4
Q3
Q1Q2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| SN74LS173D | 4-BIT D-TYPE REGISTER WITH 3-STATE OUTPUTS |
| SN54LS173J | 4-BIT D-TYPE REGISTER WITH 3-STATE OUTPUTS |
| SN74LS173N | 4-BIT D-TYPE REGISTER WITH 3-STATE OUTPUTS |
| SN74LS174D | HEX D FLIP-FLOP |
| SN54LS174 | HEX D FLIP-FLOP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74LS170N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS171D | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS171N | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74LS173AD | 功能描述:觸發(fā)器 4-Bit D-type Reg With 3-State Outputs RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
| SN74LS173ADE4 | 功能描述:觸發(fā)器 4-Bit D-type Reg With 3-State Outputs RoHS:否 制造商:Texas Instruments 電路數(shù)量:2 邏輯系列:SN74 邏輯類型:D-Type Flip-Flop 極性:Inverting, Non-Inverting 輸入類型:CMOS 輸出類型: 傳播延遲時間:4.4 ns 高電平輸出電流:- 16 mA 低電平輸出電流:16 mA 電源電壓-最大:5.5 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:X2SON-8 封裝:Reel |
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