HMS77C1000A/HMS77C1001A
7.3 DC Characteristics (1)
• (TA=-40°C~+85°C)
Specification
Typ1
Parameter
Supply Voltage
Symbol
Test Condition
Unit
V
Min
Max
VDD
XT, RC, LF
HF
DD start voltage to ensure
2.5
4.5
5.5
5.5
V
VPOR
VSS
-
-
0.05
-
-
-
-
V
V/mS
V
Power-On Reset
2
VDD rise rate
SVDD
RAM Data Retention
Voltage
VDR
1.5
Power Fail Detection
VPFD
Normal Level
Low Level
-
-
2.7
1.8
-
-
V
Supply Current
XT, RC4
HF
XIN = 4MHz, VDD = 5V
-
-
-
-
-
1.8
9.0
17
4
3.3
20
40
14
5
mA
mA
uA
3
IDD
XIN = 20MHz, VDD = 5V
XIN = 32KHz, VDD = 3V, WDT Disabled
VDD = 3V, WDT Enabled
LF
5
Power Down Current
uA
IPD
VDD = 3V, WDT Disabled
0.4
1.
2.
3.
Data in “Typ” column is at 25°C unless otherwise stated. These parameters are for design guidance only and are not tested.
This parameter is characterized but not tested.
The test conditions for all I measurements in NOP execution are:
DD
X
= external square wave; all I/O pins tristated, pulled to V , EC0 = V , RESET = V ; WDT disabled/enabled as specified.
SS DD DD
IN
4.
5.
Does not include current through R
Power down current is measured with the part in SLEEP mode, with all I/O pins in hi-impedance state and tied to V and V as
The current through the resistor can be estimated by the formula; I = V /2R (mA)
ext. R DD ext
DD
SS
like measurement conditions of supply current.
10
Oct. 2001 Ver. 2.0
HYNIX [ HYNIX SEMICONDUCTOR ]
