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參數(shù)資料
| 型號(hào)： | SN74ALS688NSR |
| 廠商： | Texas Instruments |
| 文件頁數(shù)： | 14/18頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC COMPARATOR IDENTITY 8B 20SOP |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | 74ALS |
| 類型： | 身份比較器 |
| 位數(shù)： | 8 |
| 輸出： | 低有效 |
| 輸出功能： | A=B |
| 電源電壓： | 4.5 V ~ 5.5 V |
| 輸出電流高，低： | 2.6mA，24mA |
| 額定電壓和最大 CL 時(shí)的最大傳播延遲： | 20ns @ 4.5V ~ 5.5V，50pF |
| 工作溫度： | 0°C ~ 70°C |
| 封裝/外殼： | 20-SOIC（0.209"，5.30mm 寬） |
| 安裝類型： | 表面貼裝 |
| 包裝： | 標(biāo)準(zhǔn)包裝 |
| 其它名稱： | 296-29909-6 |
SN54ALS688, SN74ALS688
8-BIT IDENTITY COMPARATORS
SDAS228A – JUNE 1982 – REVISED JANUARY 1995
5
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
SERIES 54ALS/ 74ALS AND 54AS/ 74AS DEVICES
tPHZ
tPLZ
tPHL
tPLH
0.3 V
tPZL
tPZH
tPLH
tPHL
LOAD CIRCUIT
FOR 3-STATE OUTPUTS
From Output
Under Test
Test
Point
R1
S1
CL
(see Note A)
7 V
1.3 V
3.5 V
0.3 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Timing
Input
Data
Input
1.3 V
3.5 V
0.3 V
High-Level
Pulse
Low-Level
Pulse
tw
VOLTAGE WAVEFORMS
PULSE DURATIONS
Input
Out-of-Phase
Output
(see Note C)
1.3 V
3.5 V
0.3 V
VOL
VOH
VOL
Output
Control
(low-level
enabling)
Waveform 1
S1 Closed
(see Note B)
Waveform 2
S1 Open
(see Note B)
[0 V
VOH
VOL
[3.5 V
In-Phase
Output
0.3 V
1.3 V
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES, 3-STATE OUTPUTS
R2
VCC
RL
Test
Point
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT
FOR OPEN-COLLECTOR OUTPUTS
LOAD CIRCUIT FOR
BI-STATE
TOTEM-POLE OUTPUTS
From Output
Under Test
Test
Point
CL
(see Note A)
RL
RL = R1 = R2
NOTES: A. CL includes probe and jig capacitance.
B. Waveform 1 is for an output with internal conditions such that the output is low except when disabled by the output control.
Waveform 2 is for an output with internal conditions such that the output is high except when disabled by the output control.
C. When measuring propagation delay items of 3-state outputs, switch S1 is open.
D. All input pulses have the following characteristics: PRR
≤ 1 MHz, tr = tf = 2 ns, duty cycle = 50%.
E. The outputs are measured one at a time with one transition per measurement.
Figure 1. Load Circuits and Voltage Waveforms
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SN74ALS688NSRE4 | 功能描述:校驗(yàn)器 IC 8-Bit Identity Comparators RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| SN74ALS688NSRG4 | 功能描述:校驗(yàn)器 IC 8B Identity Magnitde Comparators RoHS:否 制造商:STMicroelectronics 產(chǎn)品: 比較器類型: 通道數(shù)量: 輸出類型:Push-Pull 電源電壓-最大:5.5 V 電源電壓-最小:1.1 V 補(bǔ)償電壓（最大值）:6 mV 電源電流（最大值）:1350 nA 響應(yīng)時(shí)間: 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:SC-70-5 封裝:Reel |
| SN74ALS746-1N | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述: |
| SN74ALS746DW | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| SN74ALS746DWR | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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