T8207-BAL-DT Agere Systems, Inc., T8207-BAL-DT Datasheet - Page 17

• Manufacturer Part Number: T8207-BAL-DT
• Description: CelXpres ATM interconnect. Dry-bagget, tape & reel .
• Manufacturer: Agere Systems, Inc.

Advance Data Sheet
September 2001
Agere Systems Inc.
2
Table 5. Translation SRAM Interface
Table 6. JTAG Pins
tr_cs*[1:0]
tr_a[17:0]
jtag_trst*
jtag_tms
tr_d[7:0]
jtag_tclk
Symbol
Symbol
jtag_tdo
jtag_tdi
tr_we*
tr_oe*
Pin Description
H3, G1, G2, G3,
E3, D1, C1, E4,
D3, D2, C2, B1
J3, J4, H1, H2,
L3, L2, L1, K1,
K3, K2, J1, J2,
E1, E2
F1, F2
W16
W15
Ball
Ball
U14
Y16
V15
G4
F3
(continued)
Reset
Reset
Value
Value
—
—
—
—
X
Z
X
1
1
1
Type
Type
I/O
O
O
O
O
O
I
I
I
I
Translation RAM Address Lines. 4 mA drive, TTL compat-
ible output.
Translation RAM Data Lines. 4 mA drive, TTL compatible
I/O, 5 V tolerant.
Translation RAM Chip Selects (Active-Low). Chip selects
to select one of two external SRAMs. For connection to one
external device, tr_cs*[0] is used. 4 mA drive, TTL compati-
ble output.
External RAM Output Enable (Active-Low). 4 mA drive,
TTL compatible output.
External RAM Write Enable (Active-Low). 4 mA drive,
TTL compatible output.
Test Data Input (JTAG). TTL compatible input, 5 V tolerant.
This pin has an internal 50 k pull-up resistor.
Test Data Output (JTAG). 4 mA drive, TTL compatible out-
put.
Test Reset (JTAG) (Active-Low). Should be pulled low
when part is in normal operation. TTL compatible input, 5 V
tolerant. This pin has an internal 50 k pull-up resistor.
Test Clock (JTAG). TTL compatible input, 5 V tolerant. This
pin has an internal 50 k
Test Mode Select (JTAG). TTL compatible input, 5 V toler-
ant. This pin has an internal 50 k pull-up resistor.
Name/Description
Name/Description
pull-up resistor.
ATM Interconnect
CelXpres T8207
17