IDT77105L25TF8 IDT, Integrated Device Technology Inc, IDT77105L25TF8 Datasheet - Page 4

• Manufacturer Part Number: IDT77105L25TF8
• Manufacturer: IDT, Integrated Device Technology Inc

Specifications of IDT77105L25TF8

• Data Rate: 25.6Mbps
• Number Of Channels: 1
• Type Of Atm Phy Interface: UTOPIA
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (min): 4.5V
• Operating Supply Voltage (max): 5.5V
• Operating Temp Range: 0C to 70C
• Operating Temperature Classification: Commercial
• Pin Count: 64
• Mounting: Surface Mount
• Lead Free Status / RoHS Status: Not Compliant

Output Parameters for Transmit Line Signal @ Vcc = 5V ± 10%
Output Parameters for Transmit Line Signal @ Vcc = 5V ± 10%
Output Parameters for Transmit Line Signal @ Vcc = 5V ± 10%
Output Parameters for Transmit Line Signal @ Vcc = 5V ± 10%
Input Parameters for IDT77105 Receive Line Signal
Input Parameters for IDT77105 Receive Line Signal
Input Parameters for IDT77105 Receive Line Signal
Input Parameters for IDT77105 Receive Line Signal
Capacitance (T
Capacitance (T
Capacitance (T
Capacitance (T
Pin Description
Pin Description
Pin Description
Pin Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
Pin
IDT77105
ALE
WRB
V
RDB
V
RxD+
VCC
RxD-
V
DNC
UPLO
PLL_Filter_2
RxLED
TxLED
PLL_Filter_1
TXD–
DNC
TxD+
GND
TxOsc
GND
CC
CC
CC
Name
I
C
Voh
Vol
Ioh
Iol
Z
C
C
LI
1.
2.
1.
Symbol
Symbol
OUT
Symbol
IN
IN
OUT
Input Voltage = 2.5V (typ) ± 600mV
Measured with f=1MHz
Characterized values, not currently tested.
—
—
1
I
I
—
I
—
I
—
I
—
—
O
O
O
O
O
O
—
I
—
I/O
1
A A A A
Utility bus
Utility bus
Power Plane
Utility bus
Magnetics
Magnetics
N/A
User defined
Discrete Capacitor
LED
LED
Discrete Capacitor
Magnetics
N/A
Magnetics
Ground plane
OSC
Ground plane
= +25 C, f = 1MHz)
= +25
= +25
= +25
Interfaces to
Input Leakage Current
Input Capacitance
Output High Voltage for Transmit Line Signal, Ioh = 8mA Vcc - 0.5V —
Output Low Voltage for Transmit Line Signal, Ioh = 8mA —
Output High Current for Transmit Line Signal
Output Low Current for Transmit Line Signal
Output Impedance
Output Capacitance
Input Capacitance
C, f = 1MHz)
C, f = 1MHz)
C, f = 1MHz)
2
Address Latch Enable signal. The falling edge of ALE is used to latch the address on AD[7:0].
Write Byte Enable (active low).
Read Byte Enable (active low).
Reserved input
Positive Differential receive serial data input.
Reserved input
Negative Differential receive serial data input.
Reserved input
NOTE: This pin should float.
User Programmed Latched Output of Reg 0, bit 7 (opposite polarity).
(See Figure 20).
LED driver output (see Figure 8). Pulses low when a cell is being received.
LED driver output (see Figure 8). Pulses low when a cell is being transmitted
(See Figure 20).
Differential Negative transmit serial data output.
NOTE: This pin should float.
Differential Positive transmit serial data output.
Input from an external clock oscillator. 32MHz for 25.6 Mbps; ±100ppm
Parameter
Parameter
Parameter
Table 1 Pin Description (Part 1 of 2)
1
4 of 24
-1
—
—
—
—
V
V
IN
OUT
Conditions
Min.
Min.
= 0V
Description
= 0V
—
80
75
20
—
—
Typ.
Typ.
10
10
Max.
—
0.5
—
—
—
1
10
Max.
Max.
pF
pF
V
mA
Ohm
V
mA
µA
pF
Unit
Unit
Unit
September 11, 2000