W78E051C40DL Nuvoton Technology Corporation of America, W78E051C40DL Datasheet - Page 13

• Manufacturer Part Number: W78E051C40DL
• Description: IC MCU 8-BIT 4K FLASH 40-DIP
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E051C40DL

• Core Processor: 8051
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 32
• Program Memory Size: 4KB (4K x 8)
• Program Memory Type: FLASH
• Ram Size: 128 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 40-DIP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

DC Characteristics, continued
Notes:
Output High Voltage
ALE, PSEN , P0
Input Low Voltage
(Except RST)
Input Low Voltage
RST
Input Low Voltage
XTAL1
Input High Voltage
(Except RST)
Sink Current
P1, P2, P3, P4
Input High Voltage
RST
Input High Voltage
XTAL1
Sink Current
P0, ALE, PSEN
Source Current
P1, P2, P3, P4
Source Current
P0, ALE, PSEN
(*4)
(*4)
(*4)
*1. Pins P1, P2 and P3 source a transition current when they are being externally driven from 1 to 0. The transition
(*4)
*2. RST pin has an internal pull-down resistor.
*3. P0, ALE, PSEN are in the external access memory mode.
*4. XTAL1 is a CMOS input and RST is a Schmitt trigger input.
PARAMETER
current reaches its maximum value when V
(*3)
(*3)
(*3)
SYMBOL
V
V
V
V
I
I
I
I
V
V
V
SK1
SK2
SR1
SR2
OH2
IH1
IH2
IH3
IL1
IL2
IL3
IN
V
I
V
V
V
V
V
Vs = 0.45V
V
V
V
Vs = 0.45V
V
V
V
V
is approximately 2V.
OH2
DD
DD
DD
DD
DD
DD
DD
DD
DD
DD
S
DD
s
TEST CONDITIONS
= 2.4V
= 2.4V
- 13 -
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= 4.5V
= -400 μA
Publication Release Date: November 10, 2006
W78E51C/W78E051C
SPECIFICATION
MIN.
-100
0.67
0.67
V
V
2.4
2.4
-8
0
0
0
4
8
DD
DD
MAX.
+0.2
+0.2
+0.2
-250
V
V
V
0.8
0.8
0.8
-14
12
16
DD
DD
DD
-
Revision A4
UNIT
mA
mA
mA
uA
V
V
V
V
V
V
V