参数资料
型号: P87C52SFAA,512
厂商: NXP Semiconductors
文件页数: 19/38页
文件大小: 0K
描述: IC 80C51 MCU 8K OTP 44-PLCC
产品培训模块: Migrating from 8/16-Bit MCUs to 32-Bit ARMs
标准包装: 26
系列: 87C
核心处理器: 8051
芯体尺寸: 8-位
速度: 16MHz
连通性: EBI/EMI,UART/USART
外围设备: POR
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
RAM 容量: 256 x 8
电压 - 电源 (Vcc/Vdd): 2.7 V ~ 5.5 V
振荡器型: 内部
工作温度: -40°C ~ 85°C
封装/外壳: 44-LCC(J 形引线)
包装: 管件
产品目录页面: 705 (CN2011-ZH PDF)
其它名称: 568-1249-5
935252890512
P87C52SFAA
Philips Semiconductors
Product specification
80C51/87C51/80C52/87C52
80C51 8-bit microcontroller family
4 K/8 K OTP/ROM low voltage (2.7 V–5.5 V),
low power, high speed (33 MHz), 128/256 B RAM
2000 Aug 07
26
EXPLANATION OF THE AC SYMBOLS
Each timing symbol has five characters. The first character is always
‘t’ (= time). The other characters, depending on their positions,
indicate the name of a signal or the logical status of that signal. The
designations are:
A – Address
C – Clock
D – Input data
H – Logic level high
I – Instruction (program memory contents)
L – Logic level low, or ALE
P – PSEN
Q – Output data
R– RD signal
t – Time
V – Valid
W– WR signal
X – No longer a valid logic level
Z – Float
Examples: tAVLL = Time for address valid to ALE low.
tLLPL =Time for ALE low to PSEN low.
tPXIZ
ALE
PSEN
PORT 0
PORT 2
A0–A15
A8–A15
A0–A7
tAVLL
tPXIX
tLLAX
INSTR IN
tLHLL
tPLPH
tLLIV
tPLAZ
tLLPL
tAVIV
SU00006
tPLIV
Figure 14. External Program Memory Read Cycle
ALE
PSEN
PORT 0
PORT 2
RD
A0–A7
FROM RI OR DPL
DATA IN
A0–A7 FROM PCL
INSTR IN
P2.0–P2.7 OR A8–A15 FROM DPF
A0–A15 FROM PCH
tWHLH
tLLDV
tLLWL
tRLRH
tLLAX
tRLAZ
tAVLL
tRHDX
tRHDZ
tAVWL
tAVDV
tRLDV
SU00025
Figure 15. External Data Memory Read Cycle
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