參數資料
型號: SN54HC148FK
廠商: Texas Instruments, Inc.
元件分類: 基準電壓源/電流源
英文描述: 800mA, 3.3V Output, Low Dropout Voltage Regulator; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50
中文描述: 8線三線優(yōu)先編碼器
文件頁數: 7/8頁
文件大?。?/td> 127K
代理商: SN54HC148FK
SN54AHC16240, SN74AHC16240
16-BIT BUFFERS/DRIVERS
WITH 3-STATE OUTPUTS
SCLS326G – MARCH 1996 – REVISED JANUARY 2000
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
50% VCC
VCC
VCC
0 V
0 V
th
tsu
VOLTAGE WAVEFORMS
SETUP AND HOLD TIMES
Data Input
tPLH
tPHL
tPHL
tPLH
VOH
VOH
VOL
VOL
VCC
0 V
50% VCC
50% VCC
Input
Out-of-Phase
Output
In-Phase
Output
Timing Input
50% VCC
VOLTAGE WAVEFORMS
PROPAGATION DELAY TIMES
INVERTING AND NONINVERTING OUTPUTS
Output
Control
Output
Waveform 1
S1 at VCC
(see Note B)
Output
Waveform 2
S1 at GND
(see Note B)
VOL
VOH
tPZL
tPZH
tPLZ
tPHZ
VCC
0 V
50% VCC
VOL
+ 0.3 V
50% VCC
0 V
VCC
VOLTAGE WAVEFORMS
ENABLE AND DISABLE TIMES
LOW- AND HIGH-LEVEL ENABLING
tPLH/tPHL
tPLZ/tPZL
tPHZ/tPZH
Open Drain
Open
VCC
GND
VCC
TEST
S1
VCC
0 V
50% VCC
tw
VOLTAGE WAVEFORMS
PULSE DURATION
Input
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. All input pulses are supplied by generators having the following characteristics: PRR
1 MHz, ZO = 50
, tr
3 ns, tf
3 ns.
D. The outputs are measured one at a time with one input transition per measurement.
From Output
Under Test
CL
(see Note A)
LOAD CIRCUIT FOR
3-STATE AND OPEN-DRAIN OUTPUTS
S1
VCC
RL = 1 k
GND
From Output
Under Test
CL
(see Note A)
Test
Point
LOAD CIRCUIT FOR
TOTEM-POLE OUTPUTS
Open
50% VCC
50% VCC
50% VCC
50% VCC
50% VCC
50% VCC
50% VCC
50% VCC
VOH –
0.3 V
Figure 1. Load Circuit and Voltage Waveforms
相關PDF資料
PDF描述
SN54HC148W 800mA, 5.0V Output, Low Dropout Voltage Regulator; Package: TO-220, SINGLE GAUGE; No of Pins: 3; Container: Rail; Qty per Container: 50
SN54AHC16240 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN54AHC16240WD 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN74AHC16240DGV 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
SN74AHC16244DGG 16-BIT BUFFERS/DRIVERS WITH 3-STATE OUTPUTS
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