HM91710A/B
HM91710A/B
TONE/PULSE
SWITCHABLE
DIALER
TONE/PULES
SWITCHABLE
DIALER
GENERAL DESCRIPTION
The HM91710A/B are Tone/Pulse switchable dialer which are fabricated in CMOS technology with wide
operating voltage for both tone and pulse mode, and consumes very low memory retention current in ON-HOOK
state.
FEATURES
•
•
•
•
•
•
•
•
•
•
•
•
•
Tone/pulse switchable dialer.
One 32-digit last number redial memory.
Pulse to tone (P→T) is provided for PBX operation.
Flash key is available.
Minimum tone duration is 98ms or 83ms.
Minimum intertone pause is 98ms or 83ms.
Uses 3.579545 MHz crystal or ceramic resonator.
Many options can be selected.
Mode (10 PPS ; 20 PPS ; Tone)
M/B ratio (40 : 60 ; 33 : 66)
Pause time (3.6s)
Flash function (RESET)
P→T pause time (3.6s)
Flash time (600ms; 300ms; 100ms; or 80ms).
Mixed dialing.
Handfree function is provided for speaker phone application.
Power on reset circuit is provided.
Package in DIP18 or DIP16.
PIN ASSIGNMENTS
C2
C3
C4
C1
OSCI
OSCO
XMUTE
V SS
HM91710A
HM91710B
EM91710A
EM91710B
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
R3
R2
R1
R4
TONE
PO
HKS
V DD
C2
C3
C4
C1
OSCI
OSCO
XMUTE
VSS
HFI
* This specification are subject to be changed without notice.
1
2
3
4
5
6
7
8
9
18
17
16
15
14
13
12
11
10
R3
R2
R1
R4
TONE
PO
HKS
VDD
HFO
4.10.2002
1
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
KEYBOARD ASSIGNMENT
C1
1
4
7
*
R1
R2
R3
R4
C2
2
5
8
0
C3
3
6
9
#
1). P→T
2). F
3). RD
4). P
C4
P→T
F
P
RD
: In pulse mode, execute P→T function.
: Flash key.
: Redial key.
: Pause key.
V
DD
HFO
XMUTE
FUNCTIONAL BLOCK DIAGRAM
OUTPUT INTERFACE CKT.
COLUMN
INTERFACE CKT.
COL1
COL4
DIVIDER
ROW
INTERFACE CKT.
OSC.
ROW1
ROW2
ROW3
ROW/COLUMN
PROGRAMMING
COUNTER
D/A CONVERTER
TONE
INPUT INTERFACE CKT.
HKS
ROW4
LNB MEMORY
V
SS
OSCI
OSCO
PO
DECODER &
DATA LATCH
HFI
COL3
PULSE
GENERATOR
KERNEL CONTROL CKT.
COL2
DIALING SIGNAL OPTION :
b).
a]:Flash time:
Row3
Row4
flash time(ms)
NR
NR
600
NR
R
300
R
NR
100
R
R
80
PULSE RATE
M/B
R
NR
TONE
R
R
TONE
NR
NR
PULSE
20PPS
40:60
NR
R
PULSE
20PPS
33:66
UR
NR
PULSE
10PPS
40:60
UR
R
PULSE
10PPS
33:66
d]:Key type select
c]:Tone function:
Col1
MODE
Row1 Row2
Tone Duration
inter-Tone
Pause
NR
98 ms
98 ms
R
83 ms
83 ms
Col2
*or*/T
select
NR
*
R
*/T
* This specification are subject to be changed without notice.
Note: NR:no resistance.
R : A resistance connect to Vss (820KΩ typically)
UR: A resistance connect to V DDDD
1.7.2002
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
PIN DESCRIPTION
Symbol
C1
C2
C3
C4
R1
R2
R3
R4
Function
Provides keyboard scanning .
a. Keyboard scanning:
HKS pin is LOW, the column group stays in "HIGH" stays and row group stays in "LOW" state.
The key pad is compatible with the standard dual contact matrix keyboard (as Figure 1b.), the
inexpensive single contact keyboard (as Figure 1a.), and electronic input (as Figure 1c.).
When HKS is "low", a valid key entry is defined by related Row & Column connection or by
electronic input; (as show in Figure 1c).
Activation of two or more keys will result in no response, except for single key.
To avoid keyboard bouncing error, this chip provides built-in debounce circuit. (The debounce
time = 20 ms.)
Row
Column
Figure 1a : Single contact form keyboard configuration
Row
Column
Figure 1b : Dual contact form keyboard configuration
V
DD
Row
VSS
VDD
Column
VSS
Figure 1c : Electronic signal input keyboard configuration
OSCI
OSCO
XMUTE
VSS
VDD
HKS
PO
Oscillator input & Oscillator output pins.
The 3.579545 MHz oscillator is formed by a built-in inverter inside of this chip and by connecting a
3.579545 MHz crystal or a ceramic resonator across the OSCI and OSCO pins. (built-in feedback
resistor and capacitor)
When HKS is low, a valid key-in may turn on this oscillator and generates a 3.579545 MHz clock.
Mute output pins.
NMOS open drain output structure.
The output is in low state during dialing sequence (both Pulse and Tone mode) otherwise this pin is
"high-impedance".
Long (continue) Mute.
Negative power supply pin.
Positive power supply pin.
Hook switch input pin.
When the handset is in ON-HOOK state, this pin must be pulled "high" in order to disable the dialing
operation and decrease the power consumption.
When in OFF-HOOK state, the HKS pin must be pulled "low" state for all function operation.
Pulse output signal pin.
NMOS open drain output structure.
The output is "low" during pulse dialing and Flash operation, otherwise this output is "floating".
* This specification are subject to be changed without notice.
1.7.2002
3
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
Symbol
TONE
HFI
HFO
Function
Dual Tone Multi-frequency output pin.
In TONE mode, when a entry of digit key (include * , # key), this pin will sent out a corresponding
DTMF signal.
The TONE pin provides minimum tone duration (tTD),& minimum intertone pause time to support rapid
key-in. If key-in time is less than tTD , DTMF signal will last for tTD , otherwise the tone duration will
last as long as the key is pressed.
Handfree input control pin.
Toggle input sturcture, falling edge trigger.
It is used to enable and disable Handfree function.
With waveshaped by a built-in Schmit trigger, the bounce of input can be eliminated by external R,
C debounce circuit.
A built-in pull up resistor is 200K typical.
Handfree output pin.
Inverter output structure (normally "low", active "high").
When a HFI pin is active, Handfree function will be enabled (HFO=1) or disabled (HFO=0).
When the Handfree function is enable (HFO=1), after OFF-HOOK action, it can reset Handfree
function and HFO pin return to "low" state.
FUNCTION DESCRIPTION
Keyboard Operation
Symbol definitions:
a). ↑
b). ↓
c). D1.....Dn
d). DP1... DPn
e). Dt1....Dtn
f). tF
g). tP
h). tPT
i). tFP
j). tRP
k). LNB
: OFF-HOOK or enable Hand Free function.
: ON-HOOK or disable Hand Free function.
: Digit key; 1,2,3,4,5,6,7,8,9,0,*,# (C1.....Cn is same as D1.....Dn ).
: Pulse digit ; 1,2,3,4,5,6,7,8,9,0, (CP1... CPn is same as DP1... DPn).
: Tone digit ; 1,2,3,4,5,6,7,8,9,0,*, # (Ct1....Ctn is same as Dt1....Dtn).
: Flash time.
: Pause time.
: Pulse to Tone wait time.
: Pause time for flash.
: Pause time for redial.
: Last number redial buffer.
A. Normal Dialing
1. Digit Dialing
Procedure : ↑ D1,D2 . . . . . ., Dn↓
Dial out : Dt1, Dt2 . . . . . . ., Dtn in tone mode
Dial out : Dp1, Dp2 . . . . . ., Dpn in pulse mode
LNB
: D1, D2 . . . . . . Dn
* This specification are subject to be changed without notice.
1.7.2002
4
HM91710A/B
TONE/PULES SWITCHABLE DIALER
2. Dialing with flash key
Procedure : ↑ F,D1,D2 . . . . . ., Dn↓
Dial out : tF, Dt1,Dt1 . . . . . . ., Dtn in tone mode
Dial out : tF,Dp1,Dp1 . . . . . . ., Dpn in pulse mode
LNB
: D1, D2 . . . . . . . Dn
3. Dialing with P→T key
Procedure : ↑ D1, D2 . . . . . .,P→T, . . . . . , Dn↓
Dial out : Dp1, Dp2, . . . . tPT, . . . . . , Dtn in pulse mode
LNB
: D1, D2 . . . . . ,P→T, . . . . Dn
Note : If key in digit over maximum digit stored in LNB, then RD is inhibited even after on/off hook.
B. Mixed dialing
Procedure : ↑ D1, D2 . . . . . .,P→T, D9,D10, . . . . . , Dn↓
Dial out : Dp1, Dp2, . . . . tPT, Dt9,Dt10 . . . . . , Dtn
LNB
: D1, D2 . . . . . ,P→T, D9,D10 . . . . Dn
C. Redial
LNB
: D1, D2 . . . . . Dn
Procedure : ↑ RD ↓
Dial out : Dt1, Dt2, . . . . Dtn in tone mode
Dial out : Dp1, Dp2, . . . . Dpn in pulse mode
Note : If key in digit over maximum digit stored in LNB, then RD is inhibited.
D. Pause Function
Procedure
Dial out
Dial out
LNB
: ↑ D1, D2, . . . .Dn, P, C1 . . . . .Cn↓
: Dt1, Dt2, . . . . Dtn , tp, Ct1 . . . . . . . . . Ctn in tone mode
: Dp1, Dp2, . . . . Dpn,tp, Cp1 . . . . . . . . .Cpn in pulse mode
: D1, D2 . . . . . Dn, P, C1, C2 . . . . . . . . . .Cn
E. Flash Function
1. Reset
Procedure
Dial out
Dial out
LNB
: ↑ D1, D2, . . . .Dn, F, C1 . . . . .Cn ↓
: Dt1, Dt2, . . . . Dtn , tF,Ct1 . . . . . . . . . Ctn in tone mode
: Dp1, Dp2, . . . . Dpn, tF,Cp1 . . . . . . . . .Cpn in pulse mode
: C1, C2 . . . . . Cn
Handfree function operation:
A). To execute Handfree function : When HFO = "low", HFI pin is active , the Handfree function will be
enabled (HFO="HIGH").
B). Reset Handfree function:
a. OFF-HOOK action.
b. When HFO="high", a HFI pin is active again , the Handfree function will be reset (HFO="LOW").
* This specification are subject to be changed without notice.
1.7.2002
5
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
Operating flow chart of Handfree
ON HKS
INITIAL (0)
OFF
HF
HF
ON
ON HKS
(1)
HF LINE
OFF
OFF HKS
LINE (2)
HF
ON
HF
OFF HKS
HF LINE (3)
STATE NO.
(0) INITIAL STATE
(1) ON HKS HF LINE
(2) OFF HKS LINE
(3) OFF HKS HF LINE
PO
F
F
F
F
XMUTE
F
F
F
F
HFO
0
1
0
1
* Note :
ON : ON HKS
OFF : OFF HKS
HF : Pressed HF key
* F : Floating (Hi-impedance)
* This specification are subject to be changed without notice.
1.7.2002
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HM91710A/B
TONE/PULES SWITCHABLE DIALER
TEST CIRCUIT
1
V+
Operation current
2
Standby current
V+
A
A
DP
DP
DT
V
DD
MODE
KEY
BOARD
HKS
VDD
V
SS
HKS
VSS
3
Tone output voltage
.
4
Tone distortion
V+
V+
COUNTER
AND
AC METER
SPECTRUM
ANALYZER
TONE
TONE
VDD
KEYBOARD
ENTRY
10K
Ã(V1)**2+(V2)**2+..+(Vn)**2
DIST.(dB)= 20log
Ã(VL)**2+(VH)**2
V+
Pulse output sink current(
open drain structure)
a. V1....Vn are extraneous frequencies (ie, inter modulation and
harmonic)
components in the 500Hz to 3400Hz band.
b. VL,VH are the individual frequency components of the
DTMF signal
c. Whether keyboard is pushed refer to the TONE mode time
diagram
6
V
+
A
VDD
PO
A
Keypad input
V DD
R *
ROW
Flash Key
V
ENTRY
VSS
HKS
**
5
KEYBOARD
V
10K
VSS
HKS
VDD
HKS
VSS
HKS
V SS
MODE
C *
VEXT
7
V+
V
DD
R*
Column
C*
A
HKS
V
SS
MODE
Isink=I/(1-Duty Cycle) I is the net DC current measured from
ampere meter.
R* , C* mean others column and row.
* This specification are subject to be changed without notice.
1.7.2002
7
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
ABSOLUTE MAXIMUM RATINGS (Ambient Temperature is 25oC, All voltage referenced to VSS. )
Sym.
Parameter
Power Supply Voltage
Input Voltage Range
Operating Temperature
Storage Temperate
Power Dissipation
VDD
VIN
TOPR
TSTO
PD
Ratings
Unit
6.0
-0.3 ~ VDD + 0.3
0 ~ 50
-55 ~125
500
V
V
o
C
o
C
mw
ELECTRICAL CHARACTERISTICS (I) (Ambient Temperature is 25oC, All voltage referenced to VSS , VDD = 2.5V,
unless otherwise noted.)
(General purpose specification, fosc. = 3.579545 MHz)
Parameter
Operating Voltage
Sym.
VDD
Operating Current
Iop
Standby Current
Memory retention current
Control pin input voltage
Is
Imr
Vil
Vih
XMUTE pin
leakage current
sink current
HKS pin input current
Keyboard scanning pin
drive current
sink current
Key-in debounce time
HFI pin input resistor
HFO pin
drive current
sink current
Conditions
Tone
Pulse
Memory retension
Tone
OFF-HOOK, Keypad entry
Pulse
ON-HOOK, No Keypad entry
ON-HOOK, VDD = 1.0V
Min.
Typ.
Max.
Unit
2.5
2.0
1.0
VSS
0.7VDD
0.6
0.2
0.1
0.1
-
5.5
5.5
5.5
2
0.5
1
0.2
0.3VDD
VDD
mA
mA
µA
µA
V
V
V
Imth
Imtl
Ihks
Vxmute = 2.5V
Vxmute = 0.5V
Vhks = 2.5V
0.2
-
0.5
-
1
0.1
µA
mA
µA
Ikbd
Ikbs
tDB
Rhfi
*Vn = 0V,
*Vn = 2.5V,
4
200
-
10
400
20
200
30
800
-
µA
µA
ms
KΩ
0.5
0.5
-
-
mA
mA
Vhfi=0
Ihdoh Vhfo = 2.0V
Ihdol Vhfo = 0.5V
* Vn : Input voltage of any keyboard scanning pin (Row group, Column group).
* This specification are subject to be changed without notice.
1.7.2002
8
HM91710A/B
TONE/PULES SWITCHABLE DIALER
ELECTRICAL CHARACTERISTICS (II) (Ambient Temperature is 25oC, All voltage referenced to VSS , VDD = 2.5V,
unless otherwise noted.)
(Pulse mode specification, fosc. = 3.579545 MHz)
Parameter
Sym.
Conditions
Pulse output pin,SDO pin
leakage current
sink current
Pulse rate
Ipoh
Ipol
fpr
Make/Break ratio
TM:TB
Pre-digit Pause
tPDP
Inter-digit Pause
tIDP
Vpo = 2.5V
Vpo = 0.5V
M/B ratio = 40:60
M/B ratio = 33:66
Pulse rate = 10pps
Pulse rate = 20pps
Min.
Typ.
Max.
Unit
0.5
-
10
20
40:60
33:66
40
33
800
500
0.1
-
uA
mA
pps
pps
%
%
ms
ms
ms
ms
ELECTRICAL CHARACTERISTICS (III) (Ambient Temperature is 25oC, All voltage referenced to VSS , VDD = 2.5V,
unless otherwise noted.)
(TONE mode specification, fosc. = 3.579545 MHz)
Parameter
TONE output pin
DC level
sink current
AC level
Load resistor
DTMF signal:
pre-emphasis
*distortion
Minimum tone duration
Minimum intertone
pause
Sym.
Conditions
Min.
Vdc
Itl
Vdtmf
Rl
VDD = 2.0V~5.5V
Vdtmf = 0.5V
Row group, RL = 10KΩ
Dist.² -23dB
twist
Dist.
tTD
tITP
VDD = 2.0~5.5V, Column-Row group
RL = 10KΩ
Auto redial
Auto redial
Typ.
0.5VDD 0.2
130 155
10
1
-
-
2
-30
98/83
98/83
Max.
Unit
0.7VDD
170
-
V
mA
mVrms
KΩ
3
-23
-
dB
dB
ms
ms
* Distortion (dB) = 20 log { [(V12 + V22 + V32+...+Vn) 1/2 ] / [(VL2 + VH2) 1/2 ]}.
VL , VH : Row group and Column group signal.
V1 ,V2 ,...., Vn : Harmonic signal (BW = 300 Hz~ 3500 Hz).
* Actual frequency output (fosc. = 3.579545 MHz)
KEYBOARD SCANNING PIN
STANDARD (Hz)
R1
R2
R3
R4
C1
C2
C3
f1
f2
f3
f4
f5
f6
f7
697
770
852
941
1209
1336
1477
* This specification are subject to be changed without notice.
OUTPUT (Hz)
699
766
848
948
1216
1332
1472
DEVIATION (%)
+0.28
-0.52
-0.47
+0.74
+0.57
-0.30
-0.34
1.7.2002
9
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
HKS
KEY IN
3
2
t
3
DB
XMUTE
t
PO
ITP
t
t
ITP
ITP
TONE
t
TD
OSCO
- - - - - - High impedance
NORMAL DIALING
Figure 2: Tone Mode Timing Diagram
HKS
KEY IN
3
2
t
3
DB
XMUTE
t PDP
t IDP
t IDP
t IDP
tM
PO
TONE
tM
tB
OSCO
- - - - - - High impedance
NORMAL DIALING
Figure 3: Pulse Mode Timing Diagram
* This specification are subject to be changed without notice.
1.7.2002
10
HM91710A/B
TONE/PULES SWITCHABLE DIALER
HKS
3
2
P->T
3
KEY IN
t
DB
XMUTE
t
t
PDP t
IDP
IDP
T
pt
PO
t
ITP
TONE
OSCO
- - - - - - High impedance
Figure 4: Timing Waveform for mixed dialing Operation (by P→T key entry)
HKS
KEY IN
1
RD
2
t
DB
XMUTE
PO
t
ITP
t
t
ITP
ITP
TONE
t
OSCO
tITP
D
- - - - - - High impedance
AUTO DIALING
Figure 5: Tone Mode Redial Timing Diagram
* This specification are subject to be changed without notice.
1.7.2002
11
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
HKS
KEY IN
XMUTE
3
2
t
RD
DB
XMUTE
t
t
IDP
t
IDP
t
IDP
IDP
PO
TONE
OSCO
- - - - - - High impedance
Figure 6: Pulse Mode Redial Timing Diagram
HKS
KEY IN
3
2
t
*PULSE MODE:
P
3
DB
XMUTE
t
t IDP
PDP t
IDP
T
P
tIDP
PO
TONE
OSCO
*TONE MODE:
t
DB
XMUTE
PO
Tp
t
ITP
t
ITP
t
ITP
TONE
OSCO
- - - - - - High impedance
Figure 7: Pause key operating timing
* This specification are subject to be changed without notice.
1.7.2002
12
HM91710A/B
TONE/PULES SWITCHABLE DIALER
HKS
KEY IN
F
t
DB
XMUTE
PO
TF
TONE
OSCO
- - - - - - High impedance
Figure 8: Flash key operation timimg
* This specification are subject to be changed without notice.
1.7.2002
13
APPLICATION CIRCUIT
* This specification are subject to be changed without notice.
EM91710A Application Example
HM91710A
IN4004*4
Tip
22M
100K
HOOK SW
ON
MPSA92
OFF
IN4148
Ring
IN4148
240K
330K
ZNR
120V
Z.D.
5V1
2K2
MPSA42
IN4148
2K7
100µ/16V
220K
100K
.1µ
100µ
16V
470K
C945
9
11
VDD
PO
1µ
HKS
TONE
2
5
8
*
0
3
6
9
#
XMUTE
14
R1
15
16 R2
13 R3
P→T
F
P
R/P
OSCI OSCO
2 WIRE TO 4 WIRE
SPEECH NETWORK
6
TONE
20PPS
10PPS
1.7.2002
3.579545MHz
VSS
8
14
HM91710A/B
HM
91710A/B
5
820k*6
7
TO HANDSEET
R4
VDD
12
EM91710A
HM91710A
C4
1
4
7
10
TONE/PULSE SWITCHABLE DIALER
4
C1
1
2 C2
3 C3
100K
APPLICATION CIRCUIT
* This specification are subject to be changed without notice.
EM91710B Application Example
HM91710B
22M
IN4004*4
Tip
IN4148
100K
HOOK ON
MPSA92
ZNR
120V
330K
Ring
2K2
2K7
IN4148
200K
0.1µF
240K
470K
C945
+
100K
C945
+
100µ
16V
.1µ
1µ
5V1
11
14
V TONE
DD
12
3K3
HKS
47K
C945
200
.02µ
13
PO
9
100K
47K
HF
KEY
HFO
HFI
.1µ
5
HM91710B
EM91710B
7
XMUTE
10
HFO
OSCI
3.579545 MHz
6
2 TO 4 WIRE
SPEECH NETWORK &
AUDIO AMPLIFIER
TO HANDSET
C4 C3 C2
2
1
VDD
3
6
9
#
P →T
F
P
RD
15
HM91710A/B
1.7.2002
820K*6
20PPS
3
2
5
8
0
10PPS
8
1
4
7
*
TONE
VSS
16
R1 17
R2
18
R3
15
R4
4
C1
TONE/PULES SWITCHABLE DIALER
OSCO
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
PACKAGE INFORMATION
Example :
HM
(1)
91710 P
(2) (3)
(1) ELAN MICRO. pefix
(2) Type number
(3) Package code:
P→PDIP
K→Skinny
R→SDIP
16 Lead Plastic Package
E1
1
D
E
A
A1
L
C
B
e
B1
eB
16 PDIP
DIM
A
A1
B
B1
C
D
E
E1
e
eB
L
MILIMETERS
MIN. MAX.
5.334
0.381
0.356 0.558
1.150 1.778
0.204 0.381
19.05 20.07
7.620 8.255
6.096 7.112
2.286 2.794
10.92
2.921 4.064
INCHES
MIN. MAX.
.210
.015
.014 .022
.045 .070
.008 .015
.750 .790
.300 .325
.240 .280
.090 .110
.430
.115 .160
* This specification are subject to be changed without notice.
1.7.2002
16
HM91710A/B
TONE/PULES SWITCHABLE DIALER
18/20/28 Lead Plastic Package
E1
1
D
E
A
A1
L
C
B
e
B1
eB
18 PDIP
DIM
A
A1
B
B1
C
D
E
E1
e
eB
L
MILIMETERS
MIN. MAX.
5.334
0.381
0.356 0.558
1.150 1.778
0.204 0.381
22.35 23.37
7.620 8.255
6.096 7.112
2.286 2.794
10.92
2.921 4.064
20 PDIP
INCHES
MILIMETERS
INCHES
MIN. MAX. DIM MIN. MAX. MIN. MAX.
.210
A
5.334
.210
.015
A1 0.381
.015
.014 .022
B
0.356 0.558 .014
.022
.045 .070
B1 1.150 1.778 .045
.070
.008 .015
C
0.204 0.381 .008
.015
.880 .920
D
25.40 26.67 1.000 1.050
.300 .325
E
7.620 8.255 .300
.325
.240 .280
E1 6.096 7.112 .240
.280
.090 .110
e
2.286 2.794 .090
.110
.430
eB
10.92
.430
.115 .160
L
2.921 4.064 .115
.160
* This specification are subject to be changed without notice.
28 PDIP
MILIMETERS
DIM MIN. MAX.
A
6.350
A1
0.381
B
0.356 0.558
B1
1.016 1.778
C
0.204 0.381
D
35.56 37.85
E
15.24 15.88
E1
13.21 14.73
e
2.286 2.794
eB
17.78
L
2.921 5.080
INCHES
MIN. MAX.
.250
.015
.014
.022
.040
.070
.008
.015
1.400 1.490
.600
.625
.520
.580
.090
.110
.700
.115
.200
1.7.2002
17
HM
91710A/B
HM91710A/B
TONE/PULSE SWITCHABLE DIALER
22/24 Lead Plastic Package-Skinny
E1
1
D
E
A
A1
L
C
B
e
B1
eB
22 PDIP (skinny)
DIM
A
A1
B
B1
C
D
E
E1
e
eB
L
MILIMETERS
MIN.
MAX.
4.752
0.381
0.356
0.558
1.27
1.778
0.204
3.556
25.90
26.67
7.620
8.255
6.223
6.604
2.286
2.794
8.382
10.16
2.921
4.064
24 PDIP (skinny)
INCHES
MIN.
MAX.
.180
.015
.014
.022
.050
.070
.008
.014
1.02
1.05
.300
.325
.245
.260
.090
.110
.330
.400
.115
.160
DIM
A
A1
B
B1
C
D
E
E1
e
eB
L
* This specification are subject to be changed without notice.
MILIMETERS
MIN.
MAX.
4.572
0.381
0.356
0.558
1.27
1.778
0.204
0.381
31.24
32.26
7.620
8.255
6.223
6.731
2.286
2.794
8.636
9.652
2.921
4.064
INCHES
MIN.
MAX.
.180
.015
.014
.022
.050
.070
.008
.015
1.23
1.270
.300
.325
.245
.265
.090
.110
.340
.380
.115
.160
1.7.2002
18
HM91710A/B
TONE/PULES SWITCHABLE DIALER
42 SDIP Package
E1
D
E
A A2
C
A1
L
D1
B
e
B1
eB
42 SDIP
DIM
A
A1
A2
B
B1
C
D
E1
e
eB
D1
L
MILIMETERS
MIN.
MAX.
5.08
0.381
3.937
4.191
0.356
0.559
0.914
1.116
0.204
0.304
36.70
37.34
13.84
14.10
1.727
1.829
15.24
17.78
0
0.127
2.921
3.429
* This specification are subject to be changed without notice.
INCHES
MIN.
MAX.
0.200
0.015
0.155
0.165
0.014
0.022
0.036
0.044
0.008
0.012
1.445
1.470
0.545
0.555
0.068
0.072
0.600
0.70
0
0.005
0.115
0.135
1.7.2002
19