参数资料
型号: AT87F52-24PC
厂商: Atmel
文件页数: 6/24页
文件大小: 0K
描述: IC MICRO CTRL 24MHZ 40DIP
标准包装: 10
系列: 87F
核心处理器: 8051
芯体尺寸: 8-位
速度: 24MHz
连通性: UART/USART
输入/输出数: 32
程序存储器容量: 8KB(8K x 8)
程序存储器类型: OTP 快速闪存
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 4 V ~ 6 V
振荡器型: 内部
工作温度: 0°C ~ 70°C
封装/外壳: 40-DIP(0.600",15.24mm)
包装: 管件
Not
14
Figure 10. Verifying the QuickFlash Memory
P1
P2.6
P3.6
P2.0 - P2.4
A0 - A7
ADDR.
OOOOH/1FFFH
SEE FLASH
PROGRAMMING
MODES TABLE
3-24 MHz
A8 - A12
P0
+5V
P2.7
PGM DATA
(USE 10K
PULLUPS)
V
IH
V
IH
ALE
P3.7
XTAL 2
EA
RST
PSEN
XTAL1
GND
V
CC
AT87F52
Figure 9. Programming the QuickFlash Memory
P1
P2.6
P3.6
P2.0 - P2.4
A0 - A7
ADDR.
OOOOH/1FFFH
SEE FLASH
PROGRAMMING
MODES TABLE
3-24 MHz
A8 - A12
P0
+5V
P2.7
PGM
DATA
PROG
V/V
IH
PP
V
IH
ALE
P3.7
XTAL2
EA
RST
PSEN
XTAL1
GND
V
CC
AT87F52
QuickFlash Programming and Verification Characteristics
TA = 0°C to 70°C, VCC = 5.0 ± 10%
Symbol
Parameter
Min
Max
Units
VPP
Programming Enable Voltage
11.5
12.5
V
IPP
Programming Enable Current
1.0
mA
1/tCLCL
Oscillator Frequency
3
24
MHz
tAVGL
Address Setup to PROG Low
48tCLCL
tGHAX
Address Hold After PROG
48tCLCL
tDVGL
Data Setup to PROG Low
48tCLCL
tGHDX
Data Hold After PROG
48tCLCL
tEHSH
P2.7 (ENABLE) High to VPP
48tCLCL
tSHGL
VPP Setup to PROG Low
10
s
tGHSL
VPP Hold After PROG
10
s
tGLGH
PROG Width
1
110
s
tAVQV
Address to Data Valid
48tCLCL
tELQV
ENABLE Low to Data Valid
48tCLCL
tEHQZ
Data Float After ENABLE
0
48tCLCL
tGHBL
PROG High to BUSY Low
1.0
s
tWC
Byte Write Cycle Time
2.0
ms
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