u3762mb ETC-unknow, u3762mb Datasheet - Page 18

• Manufacturer Part Number: u3762mb
• Description: Universal Telephone Functions Integrated
• Manufacturer: ETC-unknow

DC Characteristics Dialer
V
AC Characteristics Dialer
U3762MB
Memory rentention current
Pre-emphasis
DTMF distortion
DP output sink current
Keyboard input drive
current
Keyboard input sink current V
Key on resistance
all other keys
Key off resistance
Mask sink / drive current
Earth sink / drive current
Keypad active in
debounce mode
Key release debounce
Pre-digit pause
Inter-digit pause
( auto dialing )
Make/break ratio
DTMF output duration
Inter-tone pause
Flash break time, F
Flash pause time
Pause time
On-hook debounce
time
18 (23)
DD
= 2.7 V, f
Parameters
Parameters
OSC
= 3.58 MHz, all outputs unloaded, S9 closed; HKS = 0
MODE pin = R3 (10 pps)
MODE pin = C1, C2, C4 (10 pps)
MODE pin = R1 (20 pps)
MODE pin = R2
10 pps, t
20 pps
MODE pin = R1 (20 pps), R3
(10 pps)
MODE pin = C1, C2, R4 (10 pps)
R2 (20 pps)
Auto dialing, MODE = C4
Auto dialing, MODE = C4
C4 connected to R3
F
HKS = 1, V
Column/Row
R
V
V
L
PO
I
I
Test Conditions / Pins
= 0 V
= 2.7 V
Test Conditions / Pins
= 5 k
IP
= 0.5 V
Preliminary Information
= t
W
IDP
MODE = C3
MODE = C3
DD
+ t
= 1.0 V
PDP
Symbol
I
R
I
R
M
e
Symbol
I
I
I
KOFF
I
KON
MR
KD
t
PL
KS
H/L
t
t
t
t
M/B
d
t
t
H/L
KRD
t
t
t
KID
PDP
PDP
PDP
PDP
t
t
t
ITP
ohd
TD
FB
FP
t
IP
IP
P
40.8:60.2
35.6:64.4
Min.
0.5
0.5
0.5
Min.
810
135
1
0.9
3.5
15
15
37
31
84
84
84
95
Typ.
– 30
500
100
16.65
40:60
33:67
20
Typ.
33.3
2
836
512
140
220
3.6
20
20
40
20
87
87
87
98
1
39.2:60.8
31.2:68.8
Max.
Rev. A1, 15-Sep-98
– 23
0.1
Max.
3
5
33.5
860
147
101
1.1
3.7
25
25
41
90
90
90
Unit
mA
mA
mA
m
m
m
k
k
dB
dB
Unit
W
W
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
ms
A
A
A
%
%
s
s