EM91810B EMC [ELAN Microelectronics Corp], EM91810B Datasheet

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EM91810B

Manufacturer Part Number
EM91810B
Description
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
Manufacturer
EMC [ELAN Microelectronics Corp]
Datasheet

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Part Number:
EM91810BP
Manufacturer:
ALLEGRO
Quantity:
6 218
GENERAL DESCRIPTION
FEATURES
PIN ASSIGNMENTS
* This specification are subject to be changed without notice.
The EM91810A/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. EM91810A/B also provide SDO (serial data output) function to drive LCD driver (EM32100, EM32116,
EM32117) and voice synthesizer.
• 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.
• Flash function (RESET)
• Mixed dialing.
• Handfree function is provided for speaker phone application.
• Power on reset circuit is provided.
• Package in DIP18 or DIP20.
• SDO function that is supported to drive LCD driver (EM32100) and voice synthesizer to indicate dialing
• Key tone function is provided.
Mode (10 PPS ; 20 PPS ; Tone)
M/B ratio (40 : 60 ; 33 : 66)
Pause time (3.6s)
P T pause time (3.6s)
Flash time (600ms; 300ms; 100ms; or 80ms).
number.
XMUTE
OSCO
OSCI
SDO
V
C2
C3
C4
C1
TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
SS
EM91810A
1
2
3
4
5
6
7
8
9
TONE/PULES SWITCHABLE DIALER WITH LCD INTERFACE
18
17
16
15
14
13
12
11
10
R3
R2
R1
R4
TONE
PO
HKS
V
KT
DD
XMUTE
OSCO
OSCI
SDO
HFI
V
C2
C3
C4
C1
SS
EM91810B
10
1
2
3
4
5
6
7
8
9
20
19
18
17
16
15
14
13
12
11
R3
R2
R1
R4
TONE
PO
HKS
V
HFO
KT
EM91810A/B
DD
10.1.1997
EM91810A/B
1

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EM91810B Summary of contents

Page 1

... EM91810A TONE HKS EM91810A/B EM91810A/B EM91810B OSCI TONE 15 6 OSCO XMUTE HKS HFI ...

Page 2

KEYBOARD ASSIGNMENT *or*/T 0 FUNCTIONAL BLOCK DIAGRAM COL1 COL2 COL3 COL4 OSCI OSC. DIVIDER OSCO ROW1 ROW2 ROW3 ROW4 DIALING SIGNAL OPTION : a]:Flash time: Row3 Row4 flash ...

Page 3

PIN DESCRIPTION Symbol C1 Provides keyboard scanning . C2 a. Keyboard scanning: C3 HKS pin is LOW, the column group stays in "HIGH" stays and row group stays in "LOW" state. C4 The key pad is compatible with the standard ...

Page 4

Symbol TONE 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 (t key-in. If ...

Page 5

A. Normal Dialing 1. Digit Dialing Procedure : D1, Dial out : Dt1, Dt2 . . . . . . ., Dtn in tone mode Dial out : Dp1, Dp2 . . . ...

Page 6

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 ...

Page 7

TEST CIRCUIT 1 V+ Operation current MODE KEY BOARD V HKS SS 3 Tone output voltage . V+ COUNTER AND AC METER V TONE DD 10K V HKS SS ** (V1)**2+(V2)**2+..+(Vn)**2 DIST.(dB)= 20log (VL)**2+(VH)**2 5 Pulse output ...

Page 8

ABSOLUTE MAXIMUM RATINGS Parameter Power Supply Voltage Input Voltage Range Operating Temperature Storage Temperate Power Dissipation ELECTRICAL CHARACTERISTICS . unless otherwise noted ) (General purpose specification, fosc. = 3.579545 MHz) Parameter Sym. Operating Voltage V Operating Current Iop Standby Current ...

Page 9

ELECTRICAL CHARACTERISTICS . unless otherwise noted ) (Pulse mode specification, fosc. = 3.579545 MHz) Parameter Sym. Pulse output pin,SDO pin leakage current Ipoh sink current Ipol Pulse rate fpr Make/Break ratio TM:TB Pre-digit Pause t PDP Inter-digit Pause t IDP ...

Page 10

HKS 3 KEY XMUTE t PO TONE OSCO SDO HKS 3 KEY XMUTE t PDP t PO TONE t B OSCO SDO * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE ...

Page 11

HKS 3 KEY IN XMUTE t PDP PO TONE OSCO SDO Figure 4: Timing Waveform for mixed dialing Operation ( key entry) HKS 1 KEY XMUTE PO t ITP TONE OSCO SDO * This specification ...

Page 12

HKS KEY XMUTE XMUTE t IDP PO TONE OSCO SDO HKS KEY IN *PULSE MODE: XMUTE PO TONE OSCO *TONE MODE: XMUTE PO TONE OSCO SDO * This specification are subject to be changed without notice. ...

Page 13

HKS F KEY IN XMUTE PO TONE OSCO SDO HKS KEY IN SDO * This specification are subject to be changed without notice. TONE/PULES SWITCHABLE DIALER WITH LCD INTERFACE Figure 8: Flash key operation timimg 2 ...

Page 14

APPLICATION CIRCUIT * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE EM91810A/B TONE 20PPS 20PPS 10.1.1997 14 ...

Page 15

APPLICATION CIRCUIT * This specification are subject to be changed without notice. TONE/PULES SWITCHABLE DIALER WITH LCD INTERFACE EM91810A/B 10PPS 20PPS TONE 15 10.1.1997 ...

Page 16

PACKAGE INFORMATION Example : EM 91215 P (1) (2) (3) (1) ELAN MICRO. pefix (2) Type number (3) Package code: 18/20/28 Lead Plastic Package PDIP MILIMETERS INCHES DIM MIN. MAX. MIN. MAX 5.334 - .210 ...

Page 17

Lead Plastic Package-Skinny PDIP (skinny) MILIMETERS DIM MIN. MAX 4.752 A1 0.381 - B 0.356 0.558 B1 1.27 1.778 C 0.204 3.556 D 25.90 26.67 E 7.620 8.255 E1 6.223 6.604 e 2.286 ...

Page 18

SDIP Package DIM * This specification are subject to be changed without notice. TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE SDIP MILIMETERS MIN. MAX. MIN 5. 0.381 ...

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