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參數(shù)資料
| 型號： | MC74VHC595DR2G |
| 廠商： | ON Semiconductor |
| 文件頁數(shù)： | 6/11頁 |
| 文件大小： | 0K |
| 描述： | IC SHIFT REG 8BIT 3ST 16-SOIC |
| 標準包裝： | 2,500 |
| 系列： | 74VHC |
| 邏輯類型： | 移位寄存器 |
| 輸出類型： | 標準 |
| 元件數(shù)： | 1 |
| 每個元件的位元數(shù)： | 8 |
| 功能： | 串行至并行 |
| 電源電壓： | 2 V ~ 5.5 V |
| 工作溫度： | -55°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SOIC（0.154"，3.90mm 寬） |
| 供應商設(shè)備封裝： | 16-SOIC |
| 包裝： | 帶卷 (TR) |
MC74VHC595
http://onsemi.com
4
FUNCTION TABLE
Operation
Inputs
Resulting Function
Reset
(SCLR)
Serial
Input
(SI)
Shift
Clock
(SCK)
Reg
Clock
(RCK)
Output
Enable
(OE)
Shift
Register
Contents
Storage
Register
Contents
Serial
Output
(SQH)
Parallel
Outputs
(QA - QH)
Clear shift register
L
X
L, H,
↓
L
U
L
U
Shift data into shift
register
H
D
↑
L, H,
↓
L
D
→SRA;
SRN→SRN+1
U
SRG→SRH
U
Registers remains
unchanged
H
X
L, H,
↓
X
L
U
**
U
**
Transfer shift register
contents to storage
register
H
X
L, H,
↓
↑
L
U
SRNSTRN
*
SRN
Storage register remains
unchanged
X
L, H,
↓
L
*
U
*
U
Enable parallel outputs
X
L
*
**
*
Enabled
Force outputs into high
impedance state
X
H
*
**
*
Z
SR = shift register contents
D = data (L, H) logic level
↓ = High-to-Low
* = depends on Reset and Shift Clock
inputs
STR = storage register contents U = remains unchanged
↑ = Low-to-High
** = depends on Register Clock input
MAXIMUM RATINGS*
Symbol
Parameter
Value
Unit
VCC
DC Supply Voltage
– 0.5 to + 7.0
V
Vin
DC Input Voltage
– 0.5 to + 7.0
V
Vout
DC Output Voltage
– 0.5 to VCC + 0.5
V
IIK
Input Diode Current
- 20
mA
IOK
Output Diode Current
± 20
mA
Iout
DC Output Current, per Pin
± 25
mA
ICC
DC Supply Current, VCC and GND Pins
± 50
mA
PD
Power Dissipation in Still Air,
SOIC Packages
TSSOP Package
500
450
mW
Tstg
Storage Temperature
– 65 to + 150
_C
* Absolute maximum continuous ratings are those values beyond which damage to the device
may occur. Exposure to these conditions or conditions beyond those indicated may
adversely affect device reliability. Functional operation under absolute-maximum-rated
conditions is not implied.
Derating — SOIC Packages: – 7 mW/
_C from 65_ to 125_C
TSSOP Package: - 6.1 mW/
_C from 65_ to 125_C
RECOMMENDED OPERATING CONDITIONS
Symbol
Parameter
Min
Max
Unit
VCC
DC Supply Voltage
2.0
5.5
V
Vin
DC Input Voltage
0
5.5
V
Vout
DC Output Voltage
0
VCC
V
TA
Operating Temperature, All Package Types
- 55
+ 125
_C
tr, tf
Input Rise and Fall Time
VCC = 3.3V ±0.3V
VCC =5.0V ±0.5V
0
100
20
ns/V
This device contains protection
circuitry to guard against damage
due to high static voltages or electric
fields. However, precautions must
be taken to avoid applications of any
voltage higher than maximum rated
voltages to this high-impedance cir‐
cuit. For proper operation, Vin and
Vout should be constrained to the
range GND
v (Vin or Vout) v VCC.
Unused inputs must always be
tied to an appropriate logic voltage
level (e.g., either GND or VCC).
Unused outputs must be left open.
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