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UPSD325X 数据表(PDF) 148 Page - STMicroelectronics

部件名 UPSD325X
功能描述  Flash Programmable System Devices with 8032 Microcontroller Core and 256Kbit SRAM
PDF  176 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

UPSD325X 数据表(HTML) 148 Page - STMicroelectronics

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µPSD325X DEVICES
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Table 112. DC Characteristics (5V Devices)
Symbol
Parameter
Test Condition
(in addition to those in
Table 109, page 146)
Min.
Typ.
Max.
Unit
VIH
Input High Voltage (Ports 1, 2,
3, 4[Bits 7,6,5,4,3,1,0], XTAL1,
RESET)
4.5V < VCC < 5.5V
0.7VCC
VCC + 0.5
V
VIH1
Input High Voltage (Ports A, B,
C, D, 4[Bit 2], USB+, USB–)
4.5V < VCC < 5.5V
2.0
VCC + 0.5
V
VIL
Input Low Voltage (Ports 1, 2,
3, 4[Bits 7,6,5,4,3,1,0], XTAL1,
RESET)
4.5V < VCC < 5.5V
VSS– 0.5
0.3VCC
V
VIL1
Input Low Voltage
(Ports A, B, C, D, 4[Bit 2])
4.5V < VCC < 5.5V
–0.5
0.8
V
Input High Voltage
(USB+, USB–)
4.5V < VCC < 5.5V
VSS–0.5
0.8
V
VOL
Output Low Voltage
(Ports A,B,C,D)
IOL = 20µA
VCC = 4.5V
0.01
0.1
V
IOL = 8mA
VCC = 4.5V
0.25
0.45
V
VOL1
Output Low Voltage
(Ports 1,2,3,4, WR, RD)
IOL = 1.6mA
0.45
V
VOL2
Output Low Voltage
(Port 0, ALE, PSEN)
IOL = 3.2mA
0.45
V
VOH
Output High Voltage
(Ports A,B,C,D)
IOH = –20µA
VCC = 4.5V
4.4
4.49
V
IOH = –2mA
VCC = 4.5V
2.4
3.9
V
VOH1
Output High Voltage
(Ports 1,2,3,4, WR, RD)
IOH = –80µA
2.4
V
IOH = –10µA
4.05
V
VOH2
Output High Voltage (Port 0 in
ext. Bus Mode, ALE, PSEN))4
IOH = –800µA
2.4
V
IOH = –80µA
4.05
V
VOH3
Output High Voltage VSTBYON
IOH = –1µA
VSTBY – 0.8
V
VLVR
Low Voltage RESET
0.1V hysteresis
3.75
4.0
4.25
V
VOP
XTAL Open Bias Voltage
(XTAL1, XTAL2)
IOL = 3.2mA
2.0
3.0
V
VLKO
VCC(min) for Flash Erase and
Program
2.5
4.2
V
VSTBY
SRAM (PSD) Stand-by Voltage
2.0
VCC–0.2
V
VDF
SRAM (PSD) Data Retention
Voltage
Only on VSTBY
2V
IIL
Logic '0' Input Current
(Ports 1,2,3,4)
VIN = 0.45V
(0V for Port 4[pin 2])
–10
–50
µA
ITL
Logic 1-to-0 Transition Current
(Ports 1,2,3,4)
VIN = 3.5V
(2.5V for Port 4[pin 2])
–65
–650
µA



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