DS21458LDK Maxim Integrated, DS21458LDK Datasheet - Page 39

• Manufacturer Part Number: DS21458LDK
• Description: Network Controller & Processor ICs
• Manufacturer: Maxim Integrated

5.9 Packages
The package diagrams below show the lead pattern that will be placed on the target PC board. This is the
same pattern that would be seen as viewed from the top.
Figure 5-1. DS21455 Pin Diagram, 27mm BGA
NOTE: Locations C3, C13, J4, and U13 are used for the Extended System Information Bus (ESIB). These pin locations
W
G
M
A
B
C
D
E
F
H
K
L
N
P
R
T
U
V
Y
J
RSYSCLK1
RCHCLK1
RMSYNC1
TCHBLK1
RPOSO3
RSYNC3
RSYNC1
BPCLK1
TSYNC1
RNEGI3
RLCLK1
RSIGF1
TNEGI1
RLOS3
RVDD1
MCLK1
RSIG3
TTIP1
JTDI
INT
1
on the DS21Q352, DS21Q354, DS21Q552, and DS21Q554 are connected to ground. When replacing a
DS21Qx5y with a DS21455, these signals should be routed to control logic to gain access to the ESIB. If these
pins remain connected to ground, the ESIB function will be disabled. Pins labeled as “N.C.” must be
unconnected.
RMSYNC3 RCHCLK3
RFSYNC3
LIUC/TPD
RCHBLK1
RNEGO3
RPOSI3
RSIGF3
TRING1
RSER3
RLINK1
RLOS1
RSER1
RSIG1
RVSS
RVSS
DVDD
TVDD
BTS
RD
A2
2
RSYSCLK3 RCHBLK3
EISBRD3
RNEGO1
RCLKO1
TNEGO1
RLCLK3
RNEGI1
TLCLK1
RLINK3
TPOSI1
RCLK3
RCLK1
DVDD
DVDD
DVSS
TTIP2
CS1
WR
A0
3
RFSYNC1
EISBRD1
RPOSO1
RCLKO3
BPCLK3
RCLKI3
RCLKI1
RPOSI1
D7/AD7
D6/AD6
TRING2
A7/ALE
DVDD
DVDD
RVSS
RVDD
TVSS
(AS)
A5
A3
4
D5/AD5
TLINK1
DVSS
RVSS
DVDD
TTIP3
TVSS
CS3
5
ESIBS13
ESIBS01
TLCLK3
TRING3
TLINK3
TCLKI1
DVDD
DVSS
6
TSYNC3
ESIBS03
TPOSO1
TCLKO3
TCLKO1
D3/AD3
DVSS
TTIP4
7
TCHCLK3
TPOSI3
TNEGI3
TRING4
TCLKI3
DVSS
A6
A4
8
TNEGO3
ESIBS11
TPOSO3
D4/AD4
TSER1
TCLK1
DVDD
DVSS
9
39 of 269
TSSYNC3
TCHCLK1
TCLK3
TSER3
TSIG3
TSIG1
RTIP1
MUX
10
TSYSCLK3
TSYSCLK1 TSSYNC1
TCHBLK3
RRING1
D0/AD0
RLOS4
DVSS
TVDD
11
DS21455/DS21458 Quad T1/E1/J1 Transceivers
RCHBLK4
RSYNC2
RSYNC4
RLCLK2
RLINK4
DVDD
DVDD
12
EISBRD2
EISBRD4
BPCLK4
RNEGI2
RLINK2
RCLK2
RTIP2
JTMS
13
RSYSCLK4
RCHCLK2
RCHCLK4
RFSYNC4
RCLKO2
RPOSI2
RRING2
CS2
14
RNEGO2
RPOSO4
RPOSI4
RCLKI2
RSIGF2
D2/AD2
RSER2
JTCLK
15
RMSYNC2 RFSYNC2
RMSYNC4
RPOSO2
TSTRST
RSIGF4
RSIG2
DVDD
RTIP3
16
RSYSCLK2
RCHBLK2
RNEGO4
ESIBS12
BPCLK2
RCLKO4
RNEGI4
RRING3
RLOS2
RCLKI4
RSER4
TSER2
DVSS
RVDD
DVDD
DVSS
CS4
N.C.
17
A1
TSYSCLK4
TCHCLK2 TSYSCLK2
TSSYNC2
TCHCLK4
TCLKO2
ESIBS02
TSYNC4
RLCLK4
TLCLK4
RCLK4
JTRST
TSIG2
DVDD
DVDD
RVDD
RSIG4
TVSS
RVSS
TVSS
N.C.
18
TSSYNC4
TPOSO2
TPOSO4
TCLKO4
TCLKI2
TLINK2
TNEGI2
D1/AD1
TPOSI4
TLINK4
TCLK2
TSIG4
TCLK4
RTIP4
TVDD
RVSS
TVDD
JTDO
RVSS
19
TCHBLK2
TCHBLK4
TNEGO2
ESIBS14
TNEGO4
ESIBS04
TSYNC2
RRING4
TPOSI2
TLCLK2
TNEGI4
TSER4
TCLKI4
MCLK2
DVSS
DVDD
DVSS
DVSS
DVDD
RVSS
20