DS3251+ Maxim Integrated Products, DS3251+ Datasheet - Page 56

• Manufacturer Part Number: DS3251+
• Description: IC LIU DS3/E3/STS-1 144-CSBGA
• Manufacturer: Maxim Integrated Products
• Type: Line Interface Units (LIUs)r

Specifications of DS3251+

• Number Of Drivers/receivers: 1/1
• Protocol: DS3
• Voltage - Supply: 3.135 V ~ 3.465 V
• Mounting Type: Surface Mount
• Package / Case: 144-CSBGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

18.
Table 18-A
3. DS3252 has only LIUs 1 and 2. DS3251 has only LIU 1.
four devices in both hardware and CPU bus modes.
Table 18-A. Pin Assignments Sorted by Signal Name
E3MCLK
RD / DS
PRBSn
RCLKn
RCINV
RLOSn
JTCLK
NAME
JTRST
CPHA
CPOL
E3Mn
JTDO
JTMS
RLBn
LLBn
RBIN
RJAn
MOT
JTDI
ALE
HIZ
HW
INT
CS
A0
A1
A2
A3
A4
A5
D0
D1
D2
D3
D4
D5
D6
D7
PIN ASSIGNMENTS
lists pin assignments sorted by signal name. DS3254 has all four LIUs. DS3253 has only LIUs 1, 2, and
HARDWARE
MODE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
Y
Y
Y
N
Y
Y
Y
Y
Y
Y
N
Y
Y
Y
Y
N
Y
Y
Y
BUS MODE
PARALLEL
N
N
N
N
N
N
N
N
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
SPI BUS
MODE
N
N
N
N
N
N
N
N
N
N
N
N
N
N
N
Y
Y
Y
N
Y
N
N
N
N
Y
56 of 71
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Y
Figure 18-1
LIU 1
C1
C5
F3
B5
B1
B4
A1
through
LIU 2
M12
G10
K12
L12
K8
L8
L9
Figure 18-11
E12
PIN
K6
K7
K8
C7
H3
B7
E3
G2
G3
H2
H3
E9
C5
E4
H4
D5
D4
C6
D9
B6
L6
L7
L8
F2
F3
J3
J3
J8
J4
J9
LIU 3
D11
E11
A11
A10
E10
A12
C7
show pinouts for the
LIU 4
M2
M3
M1
K6
H2
H3
J2