P89V51RB2FA,529 NXP Semiconductors, P89V51RB2FA,529 Datasheet - Page 66

• Manufacturer Part Number: P89V51RB2FA,529
• Description: IC 80C51 MCU FLASH 16K 44-PLCC
• Manufacturer: NXP Semiconductors
• Series: 89Vr

Specifications of P89V51RB2FA,529

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: SPI, UART/USART
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 32
• Program Memory Size: 16KB (16K x 8)
• Program Memory Type: FLASH
• Ram Size: 1K x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 44-PLCC
• Processor Series: P89V5x
• Core: 80C51
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 32
• Number Of Timers: 3
• Operating Supply Voltage: 5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• 3rd Party Development Tools: PK51, CA51, A51, ULINK2
• Minimum Operating Temperature: - 40 C
• For Use With: 622-1017 - BOARD 44-ZIF PLCC SOCKET622-1001 - USB IN-CIRCUIT PROG 80C51ISP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -
• Lead Free Status / Rohs Status: Details
• Other names: 568-2427-5; 935278706529; P89V51RB2FA-S

NXP Semiconductors
P89V51RB2_RC2_RD2_5
Product data sheet
Fig 31. External program memory read cycle
PSEN
port 0
port 2
ALE
9.1 Explanation of symbols
Each timing symbol has 5 characters. The first character is always a ‘T’ (stands for time).
The other characters, depending on their positions, stand for the name of a signal or the
logical status of that signal. The following is a list of all the characters and what they stand
for.
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 — High impedance (Float)
Example:
t
t
AVLL
LLPL
t
= Address valid to ALE LOW time
= ALE LOW to PSEN LOW time
AVLL
t
LHLL
t
LLAX
A0 to A7
Rev. 05 — 12 November 2009
t
LLPL
t AVIV
A8 to A15
t
PLAZ
t
t
PLIV
LLIV
INSTR IN
t
PXIX
t
PXIZ
P89V51RB2/RC2/RD2
t
PLPH
8-bit microcontrollers with 80C51 core
t
PXAV
A0 to A7
A8 to A15
002aaa548
© NXP B.V. 2009. All rights reserved.
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