W78E516DPG Nuvoton Technology Corporation of America, W78E516DPG Datasheet - Page 75

• Manufacturer Part Number: W78E516DPG
• Description: IC MCU 8-BIT 64K FLASH 44-PLCC
• Manufacturer: Nuvoton Technology Corporation of America
• Series: W78r

Specifications of W78E516DPG

• Core Processor: 8052
• Core Size: 8-Bit
• Speed: 40MHz
• Connectivity: EBI/EMI, UART/USART
• Peripherals: POR, WDT
• Number Of I /o: 36
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Ram Size: 512 x 8
• Voltage - Supply (vcc/vdd): 4.5 V ~ 5.5 V
• Oscillator Type: External
• Operating Temperature: 0°C ~ 70°C
• Package / Case: 44-PLCC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Eeprom Size: -
• Data Converters: -

Notes:
*1, RST pin is a schmitt trigger input. RST has internal pull-low resistors.
*2, P0, P2, ALE, and /PSEN are tested in the external access mode.
*3, P0 and P2 are tested in the internal access mode.
*4, XTAL1 pin to input clock, XTAL2 not connected, all output pins disconnected, /EA=RST=P0=V
*5, XTAL1 pin to input clock, XTAL2 not connected, all output pins disconnected, /EA=P0=V
*6, XTAL1, XTAL2 not connected,all output pins disconnected, /EA=P0=V
21.3 AC CHARACTERISTICS
The AC specifications are a function of the particular process used to manufacture the part, the ratings
of the I/O buffers, the capacitive load, and the internal routing capacitance. Most of the specifications
can be expressed in terms of multiple input clock periods (T
experience less than a ±20 nS variation. The numbers below represent the performance expected
from a 0.6 micron CMOS process when using 2 and 4 mA output buffers.
Clock Input Waveform
Notes:
1. The clock may be stopped indefinitely in either state.
2. The T
3. There are no duty cycle requirements on the XTAL1 input.
Program Fetch Cycle
Operating Speed
Clock Period
Clock High
Clock Low
Address Valid to ALE Low
Address Hold from ALE Low
ALE Low to
Isr1
Isr2
CP
PARAMETER
specification is used as a reference in other specifications.
PARAMETER
Source current
P1, P2, P3, P4 (Quasi-
didirectional mode)
Source current[*2]
P0, P2, ALE, /PSEN
PSEN
XTAL1
Low
Preliminary W78E516D/ W78E058D Data Sheet
F
T
T
T
OP
CP
CH
CL
SYMBOL
T
T
T
SYMBOL
AAS
AAH
APL
-120
-30
-8
-2
T
CH
- 75 -
0
25
10
10
1 T
1 T
1 T
MIN.
F
MIN.
CP
CP
CP
OP,
-170
-14
- Δ
- Δ
- Δ
T
CP
CP
), and actual parts will usually
T
-
-
-
-
-
-
-
TYP.
TYP.
CL
-250
-50
-20
-10
Publication Release Date: July 30, 2008
MAX.
40
-
-
-
-
-
-
MAX.
DD,
mA
mA
uA
uA
RST=V
MHz
nS
nS
nS
nS
nS
nS
UNIT
UNIT
V
VDD = 2.7V, Vin = 2.0V
V
VDD = 2.7V, Vin = 2.0V
DD.
DD
DD
=4.5V, Vin = 2.4V
=4.5V,Vin = 2.4V
Revision A01
DD.
NOTES
1
2
3
3
NOTES
4
1, 4
4
DD.