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HT93214 Datasheet(PDF) 1 Page - Holtek Semiconductor Inc

Part # HT93214
Description  1-memory Tone/Pulse Dialer
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Manufacturer  HOLTEK [Holtek Semiconductor Inc]
Direct Link  http://www.holtek.com
Logo HOLTEK - Holtek Semiconductor Inc

HT93214 Datasheet(HTML) 1 Page - Holtek Semiconductor Inc

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HT93214 Series
1-memory Tone/Pulse Dialer
Selection Table
HT93214 series
Function
Part No.
Hand-
Free
Key
Tone
Flash
Flash
Time
(ms)
Pulse
No.
Tone
Duration
(ms)
Inter
Tone
Pause (ms)
PPS
M/B
PKG
DIP
300mil
HT93214A
Control
300/600
N
94
96
10/20
1/2
16
HT93214B
Ö
Control
300/600
N
94
96
10/20
1/2
18
HT93214AT
Ö
Control
300/600
N
94
96
10/20
1/2
18
Rev. 1.10
1
October 2, 2002
Features
· Operating Voltage: 2.0V~5.5V
· Low standby current
· Low memory retention current: 0.1mA (Typ.)
· Tone/Pulse switchable
· 32 (pulse)/31 (tone) digits for redialing
· Pause and P ® T key for PBX
· 4´4 keyboard matrix
· 3.58MHz crystal or ceramic resonator
· Hand-free control
· Pause, P ® T can be saved for redialing
· One-key redialing
· Keytone output
· Pause time: 2.2s
· Cascadable manual dialing after redialing
· Calibrated DTMF timing for redialing
· HT93214A: 16-pin DIP package
HT93214B/AT: 18-pin DIP package
General Description
The HT93214 are dialer series designed for low cost
telephone set applications with expandable features
such as Lock function, keytone and LCD display inter-
face. With a 4
´4 keyboard, it performs normal
tone/pulse switchable dialing, and provides one-key
redialing function with a 32-digit memory for speed dial-
ing. An on-chip oscillator is built-in to work with an exter-
nal 3.58Mhz crystal or ceramic resonator for accurate
timing. The HT93214 provides 300ms (F1 key) and
600ms (F2 key) of flash time; Tone dialing and 10pps,
20pps selection with 1/2 M/B ratio for pulse dialing.
Patent Number: 86474, 84545(R.O.C)


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