65
AT/TSC8x251G2D
4135F–8051–11/06
Low Voltage Versions - Commercial & Industrial
Notes:
1. Under steady-state (non-transient) conditions, IOL must be externally limited as follows:
Maximum IOL per port pin: 10 mA
Maximum IOL per 8-bit port: Port 0 26 mA
Ports 1-315 mA
Table 56.
DC Characteristics; VDD = 2.7 to 5.5 V, TA = -40 to +85°C
Symbol
Parameter
Min
Typical
(4)
Max
Units
Test Conditions
VIL
Input Low Voltage
(except EA#, SCL, SDA)
-0.5
0.2VDD - 0.1
V
VIL1(5)
Input Low Voltage
(SCL, SDA)
-0.5
0.3VDD
V
VIL2
Input Low Voltage
(EA#)
00.2VDD - 0.3
V
VIH
Input high Voltage
(except XTAL1, RST, SCL, SDA)
0.2VDD + 0.9
VDD + 0.5
V
VIH1(5)
Input high Voltage
(XTAL1, RST, SCL, SDA)
0.7VDD
VDD + 0.5
V
VOL
Output Low Voltage
(Ports 1, 2, 3)
0.45
V
IOL = 0.8 mA(1)(2)
VOL1
Output Low Voltage
(Ports 0, ALE, PSEN#, Port 2 in Page
Mode during External Address)
0.45
V
IOL = 1.6 mA
(1)(2)
VOH
Output high Voltage
(Ports 1, 2, 3, ALE, PSEN#)
0.9VDD
VIOH = -10 μA
(3)
VOH1
Output high Voltage
(Port 0, Port 2 in Page Mode during
External Address)
0.9VDD
VIOH = -40 μA
VRET
VDD data retention limit
1.8
V
IIL0
Logical 0 Input Current
(Ports 1, 2, 3 - AWAIT#)
- 50
μAVIN = 0.45 V
IIL1
Logical 1 Input Current
(NMI)
+ 50
μAVIN = VDD
ILI
Input Leakage Current
(Port 0)
± 10
μA
0.45 V < VIN < VDD
ITL
Logical 1-to-0 Transition Current
(Ports 1, 2, 3)
- 650
μAVIN = 2.0 V
RRST
RST Pull-Down Resistor
40
110
225
k
Ω
CIO
Pin Capacitance
10
pF
TA = 25°C
IDD
Operating Current
4
8
9
11
8
11
12
14
mA
5 MHz, VDD < 3.6 V
10 MHz, VDD < 3.6 V
12 MHz, VDD < 3.6 V
16 MHz, VDD < 3.6 V
IDL
Idle Mode Current
0.5
1.5
2
3
1
4
5
7
mA
5 MHz, VDD < 3.6 V
10 MHz, VDD < 3.6 V
12 MHz, VDD < 3.6 V
16 MHz, VDD < 3.6 V
IPD
Power-Down Current
1
10
μAVRET < VDD < 3.6 V
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