DS3172 Maxim Integrated, DS3172 Datasheet - Page 225

• Manufacturer Part Number: DS3172
• Description: Network Controller & Processor ICs Dual DS3/E3 Single Chip Transceiver
• Manufacturer: Maxim Integrated

Specifications of DS3172

• Part # Aliases: 90-31720-000

18.3 Misc Pin AC Characteristics
All AC timing characteristics are specified with a 25 pF capacitive load on all output pins, V
The voltage threshold for all timing measurements is V
Figure
Table 18-3. Misc Pin Timing
(V
Note 1: TMEI (GPIO), PMU(GPIO), 8KREFI(GPIO) and RST inputs.
18.4 Overhead Port AC Characteristics
All AC timing characteristics are specified with a 25 pF capacitive load on all output pins, V
The voltage threshold for all timing measurements is V
Figure
Table 18-4. Overhead Port Timing
(V
Note 1: TOHCLKn, ROHCLKn output clocks.
Note 2: TOHCLKn clock falling edge outputs to TOHn, TOHENn inputs.
Note 3: TOHCLKn, ROHCLKn clock falling edge outputs to TOHSOFn, ROHn, ROHSOF outputs.
Asynchronous Input High, Low Time
Asynchronous Input Rise, Fall Time
CLK Period
CLK Clock high and low time
DIN to CLK Setup Time
CLK to DIN Hold Time
CLK to DOUT Delay
DD
DD
= 3.3V ±5%, T
= 3.3V ±5%, T
18-2,
18-2,
Figure
Figure
PARAMETER
PARAMETER
j
j
18-3, and
18-3, and
= -40°C to +85°C.)
= -40°C to +125°C.)
Figure 18-6
Figure 18-6
apply to this
apply to this
SYMBOL
SYMBOL
t1-t2, t2
t1-t2, t2
t3
t1
t5
t6
t7
interface.
interface.
225
DD
DD
Note 1
Note 1
Note 1
Note 1
Note 2
Note 2
Note 3
/2. The generic timing definitions shown in
/2. The generic timing definitions shown in
CONDITIONS
CONDITIONS
MIN
MIN
500
500
200
-20
20
20
TYP
TYP
IH
IH
= 2.4V and V
= 2.4V and V
MAX
MAX
10
20
Figure
Figure
IL
UNITS
UNITS
IL
= 0.8V.
ns
ns
ns
ns
ns
ns
ns
= 0.8.
18-1,
18-1,