W77E058A40DL Nuvoton Technology Corporation of America, W77E058A40DL Datasheet - Page 42
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W77E058A40DL
Manufacturer Part Number
W77E058A40DL
Description
IC MCU 8-BIT 32K FLASH 40-DIP
Manufacturer
Nuvoton Technology Corporation of America
Series
W77r
Specifications of W77E058A40DL
Program Memory Type
FLASH
Program Memory Size
32KB (32K x 8)
Core Processor
8051
Core Size
8-Bit
Speed
40MHz
Connectivity
EBI/EMI, Serial Port
Peripherals
POR, WDT
Number Of I /o
32
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
4.5 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
0°C ~ 70°C
Package / Case
40-DIP
Cpu Family
W77
Device Core
8051
Device Core Size
8b
Frequency (max)
40MHz
Interface Type
UART
Total Internal Ram Size
1KB
# I/os (max)
32
Number Of Timers - General Purpose
3
Operating Supply Voltage (typ)
5V
Operating Supply Voltage (max)
5.5V
Operating Supply Voltage (min)
4.5V
Instruction Set Architecture
CISC
Operating Temp Range
0C to 70C
Operating Temperature Classification
Commercial
Mounting
Through Hole
Pin Count
40
Package Type
PDIP
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Eeprom Size
-
Data Converters
-
Lead Free Status / RoHS Status
Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
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Part Number:
W77E058A40DL
Manufacturer:
WINBOND
Quantity:
4 500
Company:
Part Number:
W77E058A40DL
Manufacturer:
WINBOND
Quantity:
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Part Number:
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Manufacturer:
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from 0 to 7, resulting in MOVX instructions that last from 2 to 9 machine cycles in length. Note that the
stretching of the instruction only results in the elongation of the MOVX instruction, as if the state of the
CPU was held for the desired period. There is no effect on any other instruction or its timing. By
default, the Stretch value is set at 1, giving a MOVX instruction of 3 machine cycles. If desired by the
user the stretch value can be set to 0 to give the fastest MOVX instruction of only 2 machine cycles.
9.3.1.1
M2
0
0
0
0
1
1
1
1
PORT 0
PORT 2
Table 4. Data Memory Cycle Stretch Values
PSEN
CLK
ALE
WR
M1
0
0
1
1
0
0
1
1
C1
MOVX Inst.
Address
M0
of Previous
Last Cycle
0
1
0
1
0
1
0
1
Instruction
C2
A0-A7
Figure 8. Data Memory Write with Stretch Value = 0
C3
A15-A8
MOVX Inst
3 (default)
C4
Machine
D0-D7
Cycles
C1
2
4
5
6
7
8
9
Machine cycle
.
Next Inst.
Address
C2
A0-A7
First
MOVX instruction cycle
- 42 -
C3
A15-A8
Next Inst. Read
strobe width
RD or WR
C4
in Clocks
D0-D7
12
16
20
24
28
C1
2
4
8
MOVX Data
Machine cycle
Address
A0-A7
C2
Second
C3
A15-A8
MOVX Data out
D0-D7
strobe width
C4
RD or WR
@ 25 MHz
1120 nS
160 nS
320 nS
480 nS
640 nS
800 nS
960 nS
80 nS
C1
Next Instruction
Machine Cycle
A0-A7
C2
C3
A15-A8
C4
D0-D7
strobe width
W77E58
RD or WR
@ 40 MHz
100 nS
200 nS
300 nS
400 nS
500 nS
600 nS
700 nS
50 nS