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PDF HT9302B Data sheet ( Hoja de datos )
| Número de pieza | HT9302B | |
| Descripción | 1-Memory/2-Memory Tone/Pulse Dialer | |
| Fabricantes | Holtek Semiconductor Inc | |
| Logotipo |  |
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HT9302 Series
1-Memory/2-Memory Tone/Pulse Dialer
Features
Patent Number: 64097, 86474, 64529, 113235 (R.O.C.)
5424740 (U.S.A.)
· Universal specification
· Operating voltage: 2.0V~5.5V
· Low standby current
· Low memory retention current: 0.1mA (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
· 4´4 keyboard matrix
· 3.58MHz crystal or ceramic resonator
· Hand-free control
· Hold-line control
· Pause, P®T can be saved for redialing
· Lock function
· Resistor options
- M/B ratio
- Flash function and flash time
- Pause and P®T duration
- Pulse number
· HT9302A: 18-pin DIP package
HT9302B: 22-pin SKDIP package
HT9302C: 20-pin DIP package
HT9302D: 24-pin SKDIP package
HT9302G: 16-pin DIP package
General Description
The HT9302 series tone/pulse dialers are CMOS LSIs
for telecommunication systems. They are designed to
meet various dialing specifications through resistor op-
tion matrix.
The HT9302 series provide the pin-selected lock func-
tion, Hold-line, Hand-free and LCD dialing number
display interface, all of which are suitable for feature
phone applications. HT9302G is simpler than HT9302X
version. It provides only a redialing memory for simple
low-cost system applications.
Selection Table
Function
Part No.
HT9302x
HT9302A
HT9302B
HT9302C
HT9302D
HT9302G
HT9302G
Lock Function
(Pin Selection)
Ö
Ö
Ö
Ö
¾
Hold Line
Hand Free
LCD Interface
Package
(Normal version)
¾¾
ÖÖ
¾¾
ÖÖ
(Simple version)
¾¾
¾ 18 DIP
¾ 22 SKDIP
Ö 20 DIP
Ö 24 SKDIP
¾ 16 DIP
Rev. 1.20
1 September 30, 2002
1 page  
HT9302 Series
Absolute Maximum Ratings
Supply Voltage ...........................................-0.3V to 6V
Input Voltage .............................. VSS-0.3 to VDD+0.3V
Storage Temperature ...........................-50°C to 125°C
Operating Temperature ..........................-20°C to 75°C
Note: These are stress ratings only. Stresses exceeding the range specified under ²Absolute Maximum Ratings² may
cause substantial damage to the device. Functional operation of this device at other conditions beyond those
listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliabil-
ity.
Electrical Characteristics
Symbol
Parameter
Test Conditions
VDD Conditions
VDD Operating Voltage
¾¾
IDD Operating Current
Pulse Off-hook
2.5V
Keypad entry
Tone No load
ISTB Standby Current
1V
On-hook, no load
No entry
VR Memory Retention Voltage
¾
¾
IR Memory Retention Current
1V On-hook
VIL Input Low Voltage
¾¾
VIH Input High Voltage
¾¾
IXMO
XMUTE Leakage Current
¾
VXMUTE=12V
No entry
IOLXM XMUTE Sink Current
2.5V VXMUTE=0.5V
IHKS HKS Pin Input Current
2.5V VHKS=2.5V
RHFI
HFI Pull-low Resistance
2.5V VHFI=2.5V
RHDI
HDI Pull-high Resistance
2.5V VHDI=0V
IOH1 Keypad Pin Source Current
2.5V VOH=0V
IOL1 Keypad Pin Sink Current
2.5V VOL=2.5V
IOH2 HFO Pin Source Current
2.5V VOH=2V
IOL2 HFO Pin Sink Current
2.5V VOL=0.5V
IOH3 HDO Pin Source Current
2.5V VOH=2V
IOL3 HDO Pin Sink Current
2.5V VOL=0.5V
tFP Pause Time After Flash
Control key
¾
Digit key
tRP
One-key Redialing Pause Time
¾ One-key redialing
tDB Key-in Debounce Time
¾¾
tBRK Break Time for One-key Redialing ¾ One-key redialing
fOSC
System Frequency
¾ Crystal=3.5795MHz
fOSC=3.5795MHz, Ta=25°C
Min. Typ. Max. Unit
2 ¾ 5.5 V
¾ 0.2 1 mA
¾ 0.6 2 mA
¾ ¾ 1 mA
1 ¾ 5.5 V
¾ 0.1 0.2 mA
VSS ¾ 0.2VDD V
0.8VDD ¾
VDD
V
¾ ¾ 1 mA
1 ¾ ¾ mA
¾ ¾ 0.1 mA
¾ 200 ¾ kW
¾ 200 ¾ kW
-4 ¾ 40 mA
200 400
¾ mA
-1 ¾ ¾ mA
1 ¾ ¾ mA
-1 ¾ ¾ mA
1 ¾ ¾ mA
¾ 0.2 ¾
s
¾ 1¾
¾ 1 ¾s
¾ 20 ¾ ms
¾ 1.2 ¾ s
3.5759 3.5795 3.5831 MHz
Rev. 1.20
5 September 30, 2002
5 Page 
HT9302 Series
· O n e - k e y r e d ia l
- P u ls e m o d e
( a ) w ith o u t * /T
K e y b o a r d in p u t: D 1 D 2 ... D n R
D ia lin g o u tp u t: D 1 D 2 ... D n tB R K tR P
D 1 D 2 ... D n
R M : D 1 D 2 ... D n
S A M :U nchanged
( b ) w ith * /T
K e y b o a r d in p u t: D 1 D 2 ... D n * /T D n + 1 ...
Dm R
D ia lin g o u tp u t: D 1 D 2 ... D n tP ® T D n + 1 ... D m
P u ls e T o n e
tB R K tR P D 1 D 2 ... D n tP ® T
P u ls e
D n + 1 ... D m
Tone
R M : D 1 D 2 ... D n * /T D n + 1 ... D m
S A M :U nchanged
- Tone m ode
( a ) w ith o u t * /T
K e y b o a r d in p u t: D 1 D 2 ... D n R
D ia lin g o u tp u t: D 1 D 2 ... D n tB R K tR P D 1 D 2
... D n
R M : D 1 D 2 ... D n
S A M :U nchanged
( b ) w ith * /T
K e y b o a r d in p u t: D 1 D 2 ... D n * /T D n + 1 ...
Dm R
D ia lin g o u tp u t: D 1 D 2 ... D n * D n + 1 ... D m
tB R K tR P D 1 D 2 ... D n * D n + 1
... D m
R M : D 1 D 2 ... D n * D n + 1 ... D m
S A M :U nchanged
N o te : If th e d ia lin g n u m b e r e x c e e d s 3 2 d ig its , r e d ia lin g is in h ib ite d a n d P O = V D D
· S A copy
- P u ls e m o d e
( a ) w ith o u t * /T
K e y b o a r d in p u t: D 1 D 2 ... D n S A
D ia lin g o u tp u t: D 1 D 2 ... D n
R M : D 1 D 2 ... D n
S A M : D 1 D 2 ... D n
( b ) w ith * /T
K e y b o a r d in p u t: D 1 D 2 ... D n * /T D n + 1 ...
Dm SA
D ia lin g o u tp u t: D 1 D 2 ... D n tP ® T D n + 1 ... D m
P u ls e T o n e
R M : D 1 D 2 ... D n * /T D n + 1 ... D m
S A M : D 1 D 2 ... D n * /T D n + 1 ... D m
- Tone m ode
( a ) w ith o u t * /T
K e y b o a r d in p u t: D 1 D 2 ... D n S A
D ia lin g o u tp u t: D 1 D 2 ... D n
R M : D 1 D 2 ... D n
S A M : D 1 D 2 ... D n
( b ) w ith * /T
K e y b o a r d in p u t: D 1 D 2 ... D n * /T D n + 1 ...
Dm SA
D ia lin g o u tp u t: D 1 D 2 ... D n * D n + 1 ... D m
R M : D 1 D 2 ... D n * D n + 1 ... D m
S A M : D 1 D 2 ... D n * D n + 1 ... D m
N o te : T h e m a x im u m c a p a c ity o f th e R M m e m o r y is 3 2 d ig its . W h e n m o r e th a n 3 2 d ig its p lu s th e " S A " k e y
a r e e n te r e d , th e S A V E fu n c tio n w ill n o t b e e x e c u te d , a n d a ll th e e x is tin g d a ta in th e s a v e m e m o r y
w ill n o t b e c h a n g e d .
Rev. 1.20
11 September 30, 2002
11 Page | ||
| Páginas | Total 27 Páginas | |
| PDF Descargar | [ Datasheet HT9302B.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| HT9302 | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor Inc |
| HT9302A | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor Inc |
| HT9302B | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor Inc |
| HT9302C | 1-Memory/2-Memory Tone/Pulse Dialer | Holtek Semiconductor Inc |
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