HT9245DL Holtek, HT9245DL Datasheet
HT9245DL
Manufacturer Part Number
HT9245DL
Description
Manufacturer
Holtek
Datasheet
1.HT9245DL.pdf
(27 pages)
Specifications of HT9245DL
Case
DIP
Date_code
1998
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Features
General Description
The HT9245 series tone/pulse dialers are CMOS
LSIs for telecommunication systems.
The HT9245 series are offered in various pack-
ages from 22-pin DIP to 28-pin DIP. The 22-pin
DIP version is suitable for low cost applications,
while the 28-pin DIP version supplies versatile
functions such as: Hold-line, Hand-free, IDD
Selection Table
Universal specification
Operating voltage: 2.0V~5.5V
Low standby current
Low memory retention current: 0.1 A (Typ.)
Tone/pulse switchable
Interface with LCD driver
32 digits for redialing
32 digits for SA memory dialing
One-key redialing
Pause and P T key for PBX
Patent Number: 86474, 113235(R.O.C.), 5424740(U.S.A.)
15-Memory Tone/Pulse Dialer
HT9245A/B/AL/BL/CL/DL
1
lock and LCD dialing number display interface,
all of which are suitable for feature phone appli-
cations.
The HT9245 provides SA, Redial, 3 one-touch and
10 two-touch memory dials for speed dialing in
either pulse or tone mode.
5 5 keyboard matrix
Make/Break ratio control
3.58MHz crystal or ceramic resonator
Hand-free control
Hold-line control
Pause, P T can be saved for redialing
Memory number: 15 memories
Keytone function
Lock function
CD key
3rd Dec ’97