si2493 Silicon Laboratories, si2493 Datasheet - Page 7

• Manufacturer Part Number: si2493
• Description: V.92 Isomodem With Global Daa
• Manufacturer: Silicon Laboratories

Table 5. Absolute Maximum Ratings
Table 6. Switching Characteristics
(V
Parameter
DC Supply Voltage
Input Current, Si2493 Digital Input Pins
Digital Input Voltage
CLKIN/XTALI Input Voltage
Operating Temperature Range
Storage Temperature Range
Note: Permanent device damage may occur if the above absolute maximum ratings are exceeded. Functional operation
Parameter
UART Timing Parameters
CLKOUT Output Clock Frequency
Baud Rate Accuracy
Reset Timing Parameters
RESET to RESET
RESET to 1st AT Command
Parallel Timing Parameters
Address Setup
Address Hold
WR Low Pulse Width
Write Data Setup Time
Write Cycle Time
Chip Select Setup
Chip Select Hold
RD Low Pulse Width
RD Low to Data Driven Time
Data Hold
RD High to Hi-Z Time
Notes:
D
= 3.0 to 3.6 V, T
1. All timing is referenced to the 50% level of the waveform. Input test levels are V
2. With 32.768 kHz clocking, allow 500 to the reset low-to-high minimum pulse on power-up and wake-from-power-down
should be restricted to the conditions as specified in the operational sections of this data sheet. Exposure to absolute
maximum rating conditions for extended periods may affect device reliability.
conditions.
A
= 0 to 70 °C for F-grade, T
1
A
=
–40 to 85 °C for G-grade)
Symbol
t
t
WDSU
t
t
RLDD
t
t
t
t
t
CSS
CSH
t
Symbol
t
t
t
t
WC
WL
DH
BD
RS
AS
AH
RL
DZ
AT
V
T
V
Rev. 1.3
V
XIND
I
T
STG
IND
IN
D
A
2.048
5.0
Min
300
120
–1
15
50
20
10
50
10
—
—
0
0
2
–0.3 to (V
–0.3 to (V
–10 to 100
–40 to 150
Value
±10
4.1
IH
Typ
D
D
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
= V
+ 0.3)
+ 0.3)
D
– 0.4 V, V
49.152
Max
IL
20
30
—
—
—
—
—
—
—
—
—
—
—
1
= 0.4 V.
Si2493
Unit
mA
°C
°C
V
V
V
Unit
MHz
ms
ms
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
%
7