FX613 Consumer Microcircuits Limited, FX613 Datasheet - Page 6

• Manufacturer Part Number: FX613
• Description: Universal Call Progress Decoder
• Manufacturer: Consumer Microcircuits Limited

Application Information ......
Decoder Timing
Decoder Timing Characteristics
With reference to Figure 4, Data-Read Timing .
Fig.4 Data-Read Timing
Notes
CHIP SELECT
SERIAL CLOCK
DATA OUT
IRQ
t
t
t
t
t
t
t
t
t
t
1 Data is output bit 5 first. Bit 5 can be clocked into the µProcessor by the first Serial Clock rising edge.
2 Chip Select should be used to react to Interrupts and then returned to a logic “1”.
PWH
PWL
CYC
CSE
CSH
DH
CDS
IR
DE
HIZ
If 8 Serial Clock pulses are employed the last 2 data-bits will be “0” and should be ignored by the
software.
If Chip Select stays low there will be no further Interrupts and no Data Output update.
TRI-STATE
Characteristics
Serial Clock “High” Pulse Width
Serial Clock “Low” Pulse Width
Serial Clock-Cycle Time
Chip Select Low to Clock “High” Edge
Last Clock “High” Edge to CS “High”
Data Out Hold Time
Clock Edge to Data Out Set Time
Interrupt (IRQ) Reset Time
Chip Select “Low” to Data Enable
Chip Select “High” to Output Tri-State
t
DE
t
IR
t
CSE
BIT 5
t
CDS
t
CYC
t
PWL
6
BIT 4
t
PWH
Min.
250
250
600
450
600
0
-
-
-
-
t
DH
Typ.
-
-
-
-
-
-
-
-
-
-
BIT 0
t
1000
CSH
Max.
200
200
200
-
-
-
-
-
-
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
t
HIZ