VRS51C1000-40-QG-ISPV2 Ramtron, VRS51C1000-40-QG-ISPV2 Datasheet - Page 45

• Manufacturer Part Number: VRS51C1000-40-QG-ISPV2
• Description: Microcontrollers (MCU) 64K+1K 40MHz 5V
• Manufacturer: Ramtron

Specifications of VRS51C1000-40-QG-ISPV2

• Data Bus Width: 8 bit
• Program Memory Type: Flash
• Program Memory Size: 64 KB
• Data Ram Size: 1 KB
• Interface Type: UART
• Maximum Clock Frequency: 40 MHz
• Number Of Programmable I/os: 36
• Number Of Timers: 3
• Operating Supply Voltage: 4.5 V to 5.5 V
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Package / Case: QFP-44
• Minimum Operating Temperature: - 40 C
• Data Rom Size: 128 B
• Height: 2 mm
• Length: 10 mm
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 4.5 V
• Width: 10 mm
• Lead Free Status / Rohs Status: Details

External Data Memory Write Cycle
The following timing diagram provides External Data Memory Write Cycle timing information.
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www.ramtron.com
F
IGURE
VRS51C1000
PORT 0
PORT 2
31: E
#PSEN
ALE
#WR
XTERNAL
D
ATA
M
EMORY
W
RITE
TLHLL
TAVLL
C
YCLE
From Ri or DPL
A0-A7
TLLAX
TAVYL
TLLYL
P2.0-P2.7 or A8-A15 from DPH
TQVWX
TWLWH
TQVWH
DATA OUT
TWHQX
TYHLH
From PCL
A8-A15 from PCH
A0-A7
page 45 of 48
INSTRL
IN