參數(shù)資料
型號(hào): AT87F52-24PC
廠商: Atmel
文件頁數(shù): 6/24頁
文件大?。?/td> 0K
描述: IC MICRO CTRL 24MHZ 40DIP
標(biāo)準(zhǔn)包裝: 10
系列: 87F
核心處理器: 8051
芯體尺寸: 8-位
速度: 24MHz
連通性: UART/USART
輸入/輸出數(shù): 32
程序存儲(chǔ)器容量: 8KB(8K x 8)
程序存儲(chǔ)器類型: OTP 快速閃存
RAM 容量: 256 x 8
電壓 - 電源 (Vcc/Vdd): 4 V ~ 6 V
振蕩器型: 內(nèi)部
工作溫度: 0°C ~ 70°C
封裝/外殼: 40-DIP(0.600",15.24mm)
包裝: 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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