P89V51RD2FN NXP Semiconductors, P89V51RD2FN Datasheet - Page 67

• Manufacturer Part Number: P89V51RD2FN
• Description: MCU 8-Bit 89V 80C51 CISC 64KB Flash 5V 40-Pin PDIP Tube
• Manufacturer: NXP Semiconductors

Specifications of P89V51RD2FN

• Package: 40PDIP
• Device Core: 80C51
• Family Name: 89V
• Maximum Speed: 40 MHz
• Ram Size: 1 KB
• Program Memory Size: 64 KB
• Operating Supply Voltage: 5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 32
• Interface Type: SPI/UART
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 3

NXP Semiconductors
P89V51RB2_RC2_RD2_5
Product data sheet
Fig 32. External data memory read cycle
Fig 33. External data memory write cycle
PSEN
port 0
port 2
ALE
RD
PSEN
port 0
port 2
ALE
WR
t
AVLL
from RI to DPL
A0 to A7
t
A0 to A7 from RI or DPL
LHLL
t
AVLL
t
LLAX
t
AVWL
t
LLWL
P2[7:0] or A8 to A15 from DPH
t
AVWL
t
AVDV
P2.0 to P2.7 or A8 to A15 from DPH
t
RLAZ
t
LLDV
t
LLAX
t
LLWL
Rev. 05 — 12 November 2009
t
t
RLRH
RLDV
t
QVWH
DATA OUT
t
WLWH
DATA IN
t
RHDX
P89V51RB2/RC2/RD2
t
RHDZ
t
WHLH
t
t
WHLH
WHQX
8-bit microcontrollers with 80C51 core
A0 to A7 from PCL
A0 to A7 from PCL
A0 to A15 from PCH
A8 to A15 from PCH
INSTR IN
002aaa550
© NXP B.V. 2009. All rights reserved.
INSTR IN
002aaa549
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