Epson RTC-72421 A - Manual (Page 7)

RTC - 72421 / 72423
Page - 4 MQ - 162 - 03
„ Characteristics
1. Absolute maximum ratings
Item Symbol Condition Specification Unit
Supply voltage V DD Ta=+25
°
C
−
0.3 to 7.0 V
Input voltage V I Ta=+25 ° C GND − 0.3 to V DD +0.3 V
Output voltage V O Ta=+25
°
C GND
−
0.3 to V DD +0.3 V
RTC-72421 −
55 to +85
°
C
Storage temperature T STG
RTC-72423 − 55 to +125 ° C
2. Recommended operating conditions
Item Symbol Condition Specification Unit
Supply voltage V DD 4.5 to 5.5 V
RTC-72421 ; − 10 to +70 ° C
Operating temperature T OPR No condensation
RTC-72423 ;
−
40 to +85
°
C
Data hold voltage V DH 2.0 to 5.5 V
CS 1 data hold time t CDR
Operation recovery time tr
See the section on data
hold timing
2.0 Min.
µ
s
3. Frequency characteristics and current consumption characteristics
Item Symbol Condition Specification Unit
RTC-72421A ±
10
RTC-72421B
±
50
RTC-72423A ±
20
Frequency tolerance
∆
f/f0
Ta=+25
°
C
V DD =5.0 V
RTC-72423 ±
50
RTC-72421 :
−
10
°
C to +70
°
C
(+25
°
C reference)
+10 /
−
120
Operation temperature
RTC-72423 : − 40 ° C to +85 ° C
(+25
°
C reference)
+10 /
−
220
× 10
-6
Frequency voltage
characteristics Ta=+25
°
C
V DD =2.0 V to 5.5 V
±
5 Max.
×
10
-6
/ V
Aging fa V DD =5.0 V, Ta=+25
°
C
±
5 Max.
×
10
-6
/ year
Shock resistance S.R.
Drop test 3 times on a hard board from
0.75 m height, or 29400 m/s
2 ×
0.2 ms
×
1/2 sin wave × 3 directions
± 10 Max. × 10
-6
I DD 1 V DD =5.0 V 1.0 Typ. 10 Max.
Current consumption
I DD 2
Ta=+25
°
C, CS 1 =0 V
I/O currents excluded V DD =2.0 V 0.9 Typ. 5 Max.
µ
A
4. Electrical characteristics ( DC characteristics )
Item Symbol Condition Applicable pins Min. Typ. Max. Unit
High input voltage 1 V IH 1 2.2 V
Low input voltage 1 V IL 1
All input pins except for
CS 1 0.8
High input voltage 2 V IH 2 4/5V DD
Low input voltage 2 V IL 2
V DD =2.0 V to
5.5 V
CS 1
1/5V DD
V
Input leakage current 1 I LK 1
Input pins except for
D 0 to D 3
1/-1 µ
A
Input leakage current 2 I LK 2
V I =V DD /0 V
10/-10
Low output voltage 1 V OL 1 I OL =2.5 mA 0.4
High output voltage V OH I OH =-400
µ
A
D 0 to D 3
2.4
Low output voltage 2 V OL 2 I OL =2.5 mA 0.4
V
Off-state leakage current I OFFLK V I = V DD / 0 V
STD.P
10/-10
µ
A
Input capacitance C I
Input pins except for
D 0 to D 3
10
Input-output capacitance C I / O
Input
frequency
1 MHz D 0 to D 3 and STD.P 20
pF