OL must be exte" />
參數資料
型號: AT89S4051-24SU
廠商: Atmel
文件頁數: 30/46頁
文件大?。?/td> 0K
描述: IC 8051 MCU FLASH 4K LF 20SOIC
產品培訓模塊: MCU Product Line Introduction
標準包裝: 38
系列: 89S
核心處理器: 8051
芯體尺寸: 8-位
速度: 24MHz
連通性: UART/USART
外圍設備: 欠壓檢測/復位,POR,PWM
輸入/輸出數: 15
程序存儲器容量: 4KB(4K x 8)
程序存儲器類型: 閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振蕩器型: 內部
工作溫度: -40°C ~ 85°C
封裝/外殼: 20-SOIC(0.295",7.50mm 寬)
包裝: 管件
其它名稱: Q2962974
36
3390E–MICRO–6/08
AT89S2051/S4051
Notes:
1. Under steady state (non-transient) conditions, I
OL must be externally limited as follows:
Maximum I
OL per port pin: 10 mA
Maximum total IOL for all output pins: 25 mA (15 mA for AT89S4051)
If I
OL exceeds the test condition, VOL may exceed the related specification. Pins are not guaranteed to sink current greater
than the listed test conditions.
2. Minimum VCC for Power-down is 2V.
3. P1.0 and P1.1 are comparator inputs and have no internal pullups. They should not be left floating.
40. Absolute Maximum Ratings*
Operating Temperature ................................. -55°C to +125°C
*NOTICE:
Stresses beyond those listed under “Absolute
Maximum Ratings” may cause permanent dam-
age to the device. This is a stress rating only and
functional operation of the device at these or any
other conditions beyond those indicated in the
operational sections of this specification is not
implied. Exposure to absolute maximum rating
conditions for extended periods may affect
device reliability.
Storage Temperature ..................................... -65°C to +150°C
Voltage on Any Pin with Respect to Ground ......-0.7V to +6.2V
Maximum Operating Voltage ............................................ 5.5V
DC Output Current............. 25.0 mA (15.0 mA for AT89S4051)
41. DC Characteristics
T
A = -40°C to 85°C, VCC = 2.7V to 5.5V (unless otherwise noted)
Symbol
Parameter
Condition
Min
Max
Units
VIL
Input Low-voltage
-0.5
0.2 VCC - 0.1
V
IH
Input High-voltage
(Except XTAL1, RST)
0.2 V
CC + 0.9
V
CC + 0.5
V
VIH1
Input High-voltage
(XTAL1, RST)
0.7 VCC
VCC + 0.5
V
VOL
Output Low-voltage(1) (Ports 1, 3)
IOL = 10 mA, VCC = 2.7V, TA = 85°C
0.5
V
VOH
Output High-voltage (Ports 1, 3)
I
OH = -80 A, VCC = 5V ± 10%
2.4
V
IOH = -30 A
0.75 VCC
V
IOH = -12 A
0.9 VCC
V
IIL
Logical 0 Input Current
(Ports 1, 3)
VIN = 0.45V
-50
A
ITL
Logical 1 to 0 Transition Current
(Ports 1, 3)
VIN = 2V, VCC = 5V ± 10%
-350
A
I
LI
Input Leakage Current
(Port P1.0, P1.1)
0 < V
IN < VCC
±10
A
V
OS
Comparator Input Offset Voltage
V
CC = 5V
20
mV
V
CM
Comparator Input Common
Mode Voltage
0V
CC
V
RRST
Reset Pull-down Resistor
50
150
K
Ω
CIO
Pin Capacitance
Test Freq. = 1 MHz, TA = 25°C
10
pF
I
CC
Power Supply Current (without
the )
Active Mode, 24/12 MHz, V
CC =
5V/3V
10.5/3.5
mA
Idle Mode, 24/12 MHz, VCC = 5V/3V
P1.0 & P1.1 = 0V or V
CC
4.5/2.5
mA
Power-down Mode(2)
VCC = 5V, P1.0 & P1.1 = 0V or VCC
10
A
V
CC = 3V, P1.0 & P1.1 = 0V or VCC
5A
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