UT32BS1X833 - Aeroflex Microelectronic Solutions

Standard Products
UT32BS1X833 Matrix-D™ 32-Channel 1:8 Bus Switch
Advanced Data Sheet
November 12, 2014
www.aeroflex.com/busswitch
FEATURES
 Interfaces to standard processor memory busses
 Single-chip interface that provides memory paging to
industry-standard SDRAMS
 Eliminates need for additional logic or FPGA
 I/O channels functional to 3.3V
 RON 5 Ohms typical
 Flat RON characteristics over channel voltage
 Propagation delay 300ps through switch
 Transmission gate technology allows for true bi-directional
operation
 Internal pull-up resistors on the first 8 outputs of each bank
to ensure memory devices remain in off state when channels
de-selected
 Bus holders maintain output states on all other outputs when
channels de-selected
 Logic power 1mW/MHz
 Temperature range -55°C to 125°C
 Operational environment:
- Intrinsic total-dose: up to 300 krad(Si)
INTRODUCTION
The UT32BS1X833 Matrix-D™ is a 32-Channel, 1:8 Bus
Switch, that provides bus isolation for up to eight banks of 32 I/
O connections. By providing bus isolation, the UT32BS1X833
can significantly reduce the amount of load capacitance seen by
a host processor and memory devices. The enable to output delay
time is only 4.1ns (typical). The reduction in both load
capacitance and delay time significantly increase speed and
performance compared with a discrete logic or FPGA memory
interface solution.
The UT32BS1X833 operates from a single 3.3V supply. The
bus channels can pass any voltage between VSS and VDD,
allowing the switching of signals using other standards, such as
LVCMOS 1.8V. The input and output banks connect via analog
channels that have an RON that is nominally 5 Ohms over the
entire input voltage range. The flat RON eliminates the need to
add external series resistors for source impedance termination.
The UT32BS1X833 has a “broadcast mode” that is enabled by
driving both SDCS[1] and SDCS[0] low. In this mode, all banks
are active, which facilitates SDRAM refresh and initialization
cycles.
- SEL Immune <100 MeV-cm2/mg
 Packaging options:
- 400-pin Ceramic Land Grid, Column Grid and Ball
Grid Array packages; 1mm pitch
 Standard Microcircuit Drawing 5962-TBD
- QML Q and V (pending)
Each UT32BS1X833 can interface up to eight of the Aeroflex
2.5Gb or 3.0Gb SDRAM MCM devices with any Aeroflex
LEON processor without the need for additional logic.
APPLICATIONS
- Microprocessor interfaces that require large amounts of
SDRAM memory
- High-speed applications or systems with large bus
capacitance
- Cost-sensitive applications that require bus isolation
without an expensive FPGA
- Large SDRAM paging architecture
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INTRODUCTION
The UT32BS1X833 32-Channel 1:8 Bus Switch is built on the Aeroflex 0.35μm process. The device incorporates control logic that
electrically connects input bank A to the output banks B0-B7, depending upon the selected channel. Figure 1 shows a block diagram
of the device. The CS input is a master device select input that enables the device when asserted low. When high, the device is in
active, and all outputs are turned off, except in the case of a refresh or initialization cycle. Refresh and initialization cycles are automatically passed on to all connected SDRAM devices when SDCS[1] and SDCS[0] are both asserted low. During either of these
cycles, all output banks are turned on. The select inputs SEL[2:0] determine which bank is turned on for normal SDRAM read and
write operations.
0A
SW
SW
SW
SW
SW
SW
SW
…
SW
0B0
0B1
0B2
0B3
0B4
0B5
0B6
0B7
31A
SW
SW
SW
SW
SW
SW
SW
SW
31B0
31B1
31B2
31B3
31B4
31B5
31B6
31B7
Channel Select
CS
SDCS[1:0]
SEL[2:0]
Decoder Logic
Figure 1. UT32BS1X833 Functional Block Diagram
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FUNCTIONAL TABLES
Table 1. Truth Table for Digital Inputs and Channels
Inputs
Selected Banks
CS
SDCS[1:0]
SEL[2]
SEL[1]
SEL[0]
1
X1b or 1Xb
X
X
X
X
00b
X
X
X
0
X1b or 1Xb
0
0
0
0
X1b or 1Xb
0
0
1
0
X1b or 1Xb
0
1
0
0
X1b or 1Xb
0
1
1
0
X1b or 1Xb
1
0
0
0
X1b or 1Xb
1
0
1
0
X1b or 1Xb
1
1
0
0
X1b or 1Xb
1
1
1
7
6
5
4
3
2
1
0
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
•
The table above indicates which banks are active based upon the selected input logic. All banks are in a high-Z state when
unselected.
PIN IDENTIFICATION and DESCRIPTION
Logic Pins
Pin Name
Direction
Pin
Number
CS
I
M11
Master chip select for device
SDCS[0]
I
M10
Enables broadcast mode when 00b. Otherwise, normal operation.
SDCS[1]
I
N10
Enables broadcast mode when 00b. Otherwise, normal operation.
SEL[0]
I
P9
Bit 0 of bank select logic.
SEL[1]
I
P10
Bit 1 of bank select logic.
SEL[2]
I
R10
Bit 2 of bank select logic.
Description
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Channel Pins
Pin Name
Pin
Number
Pin Name
Pin
Number
Pin Name
Pin
Number
Pin Name
Pin
Number
Pin Name
Pin
Number
0A
T4
0B0
R3
0B1
U4
0B2
U3
0B3
T3
1A
M3
1B0
R1
1B1
P3
1B2
N3
1B3
P2
2A
L1
2B0
U2
2B1
V1
2B2
L2
2B3
M2
3A
M4
3B0
N6
3B1
N5
3B2
N8
3B3
M5
4A
M8
4B0
P5
4B1
R4
4B2
N4
4B3
P4
5A
K9
5B0
L10
5B1
L8
5B2
L9
5B3
K8
6A
G5
6B0
G4
6B1
F5
6B2
H4
6B3
F6
7A
H7
7B0
J4
7B1
H5
7B2
J6
7B3
H6
8A
D2
8B0
K1
8B1
K2
8B2
C1
8B3
D1
9A
E1
9B0
H3
9B1
G2
9B2
G3
9B3
G1
10A
D5
10B0
C6
10B1
D4
10B2
C4
10B3
C5
11A
C9
11B0
A6
11B1
C7
11B2
C8
11B3
B7
12A
A10
12B0
B4
12B1
A3
12B2
B10
12B3
B9
13A
D9
13B0
F8
13B1
E8
13B2
F9
13B3
E9
14A
H9
14B0
E7
14B1
D6
14B2
D8
14B3
D7
15A
H11
15B0
J10
15B1
K11
15B2
H10
15B3
J11
16A
D15
16B0
F12
16B1
D13
16B2
D14
16B3
E14
17A
E13
17B0
E12
17B1
D12
17B2
H13
17B3
F13
18A
A17
18B0
B12
18B1
A11
18B2
B11
18B3
A18
19A
A15
19B0
B13
19B1
C13
19B2
B14
19B3
C14
20A
E18
20B0
D18
20B1
F18
20B2
F17
20B3
E17
21A
H19
21B0
G20
21B1
G18
21B2
G19
21B3
H18
22A
J19
22B0
D20
22B1
C20
22B2
K19
22B3
K20
23A
J16
23B0
H15
23B1
J15
23B2
H16
23B3
J17
24A
K14
24B0
J12
24B1
K15
24B2
J13
24B3
J14
25A
M15
25B0
L11
25B1
L15
25B2
L14
25B3
M14
26A
L16
26B0
P16
26B1
R16
26B2
L18
26B3
L17
27A
M20
27B0
N15
27B1
P15
27B2
N14
27B3
N20
28A
N19
28B0
U19
28B1
U20
28B2
V19
28B3
W19
29A
T19
29B0
R20
29B1
P20
29B2
T20
29B3
R19
30A
V16
30B0
V17
30B1
V15
30B2
U15
30B3
U16
31A
W13
31B0
Y15
31B1
V14
31B2
W14
31B3
V13
0B4
T2
0B5
R2
0B6
T1
0B7
P1
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Pin Name
Pin
Number
Pin Name
Pin
Number
Pin Name
Pin
Number
Pin Name
Pin
Number
1B4
N2
1B5
W2
1B6
V2
1B7
U1
2B4
M1
2B5
N1
2B6
N7
2B7
P6
3B4
L5
3B5
L4
3B6
L3
3B7
R5
4B4
M6
4B5
M7
4B6
L7
4B7
L6
5B4
K7
5B5
J7
5B6
J8
5B7
K6
6B4
K4
6B5
K3
6B6
K5
6B7
J5
7B4
G6
7B5
J1
7B6
H1
7B7
J2
8B4
C3
8B5
C2
8B6
J3
8B7
H2
9B4
F1
9B5
E2
9B6
F2
9B7
E3
10B4
B5
10B5
B6
10B6
A5
10B7
A7
11B4
B8
11B5
B2
11B6
B3
11B7
A4
12B4
A9
12B5
A8
12B6
G8
12B7
F7
13B4
E10
13B5
D10
13B6
C10
13B7
E6
14B4
H8
14B5
G9
14B6
G10
14B7
F10
15B4
F11
15B5
G12
15B6
G11
15B7
H12
16B4
E15
16B5
D11
16B6
C11
16B7
E11
17B4
G13
17B5
F14
17B6
A12
17B7
A13
18B4
B17
18B5
B19
18B6
B18
18B7
C12
19B4
A16
19B5
A14
19B6
B16
19B7
B15
20B4
F19
20B5
E19
20B6
F20
20B7
E20
21B4
J18
21B5
C19
21B6
C18
21B7
D19
22B4
H20
22B5
J20
22B6
G15
22B7
H14
23B4
K16
23B5
K18
23B6
K17
23B7
G16
24B4
K12
24B5
K13
24B6
L12
24B7
L13
25B4
M13
25B5
P17
25B6
N7
25B7
R17
26B4
M17
26B5
M16
26B6
N13
26B7
N16
27B4
L20
27B5
M19
27B6
L19
27B7
V20
28B4
M18
28B5
P19
28B6
N18
28B7
P18
29B4
T17
29B5
T18
29B6
U18
29B7
U17
30B4
W15
30B5
W16
30B6
Y14
30B7
Y16
31B4
V12
31B5
W18
31B6
V18
31B7
W17
Pin Name
Pin
Number
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Power and Ground Pins
Pin Name
Pin Number
Description
VDD
A2, A20, B1, E5, G14, P7, T16, W20, Y1, Y19
Power Supply
VSS
A1, A19, B20, E16, G7, P14, T5, U5, W01, Y02, Y20, R15
Ground
NC
K10, V4,
No Connect
Spare[0:81]
J9, E4, F4, F3, D3, C16, D16, D17, C15, C17, F15, H17, F16,
G17, R18, Y17, Y18, W11, Y11, W12, Y13, Y12, R14, P13,
T13, R13, R12, U12, T12, T11, V11, U11, U14, T15, T14, P12,
U13, N12, P11, N11, M12, R11, M9, N9, U7, U8, U6, T7, T6,
V10, U10, T10, U9, T9, R9, T8, R8, R7, P8, Y8, Y9, Y10, W9,
W10, V3, W4, Y4, W3, Y3, W8, V9, W7, V8, V7, Y6, Y7, Y5,
W6, W5, V5, R6, V6
Tie to ground
ABSOLUTE MAXIMUM RATINGS
(Referenced to VSS)1
SYMBOL
PARAMETERS
VALUE
UNITS
-0.3 to 4.8
V
VDD
Supply voltage2
VIO
Input voltage any pin2
VSS-0.3 to VDD+0.3
V
VCH
Input voltage any bussed pin2
VSS-0.3 to VDD+0.3
V
-10 to 10
mA
5
W
150
°C
5
°C/W
-65 to 150
°C
2000
V
IIO
Maximum dc I/O current any logic pin
PD
Maximum power dissipation permitted @ TC=125C3
TJ
Junction temperature
θJC
Thermal resistance, junction to case
TSTG
Storage temperature
ESD
ESD protection (human body model) Class 2
Notes:
1. Permanent device damage may occur if absolute maximum ratings are exceeded. Functional operation should be restricted to recommended operating conditions.
Exposure to absolute maximum rating conditions for extended periods may affect device reliability and performance.
2. All voltages are referenced to VSS
3. Power dissipation capability depends on package characteristics and use environment.
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RECOMMENDED OPERATING CONDITIONS
(Referenced to VSS)
SYMBOL
DESCRIPTION
CONDITIONS
VALUE
UNITS
VDD
Supply voltage
3.0 to 3.6
V
VIN
Input voltage any pin
0 to VDD
V
TC
Case operating temperature
-55 to 125
°C
tR
Rise time, logic inputs
Transition from VIL to VIH
5
ns
tF
Fall time, logic inputs
Transition from VIH to VIL
5
ns
-60 to 60
mA
ICH
DC Continuous channel current
OPERATIONAL ENVIRONMENT
OPERATIONAL ENVIRONMENT
PARAMETER
LIMIT
UNITS
TID
3.0E5
Rad(Si)
Single Event Latchup Immune (SEL)
<100
MeV-cm2/mg
POWER SUPPLY OPERATING CHARACTERISTICS (Pre and Post-Radiation)*
(VDD = 3.3V + 0.3V; VSS < VIN < VDD; -55°C < TC < 125°C); Unless otherwise noted, TC is per the temperature range ordered
SYMBOL
DESCRIPTION
CONDITIONS
IDD
Active supply current
VDD=3.6V
One SEL input toggling once per
period.
IDDS
Standby supply current
VDD=3.6V
CS=VDD, SDCS[1:0]=VDD
MIN
MAX
UNITS
--
1.2
mA/MHz
-55°C &
25°C
25
uA
125°C
250
Notes:
* For devices procured with a total ionizing dose tolerance guarantee, the post-irradiation performance is guaranteed at 25°C per MIL-STD-883 Method 1019,
Condition A up toup to the maximum TID level procured.
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DC CHARACTERISTICS FOR LOGIC SIGNALS(Pre and Post-Radiation)*
(VDD = 3.3V + 0.3V; VSS < VIN < VDD; -55°C < TC < 125°C); Unless otherwise noted, TC is per the temperature range ordered
SYMBOL
DESCRIPTION
CONDITIONS
MIN
MAX
UNITS
VIH
High-level input voltage
VDD = 3.6V
2.0
--
V
VIL
Low-level input voltage
VDD =3.0V
--
0.8
V
IIN
Input leakage current
VIN=VDD, VDD = 3.6V
--
1
uA
VIN=VSS, VDD = 3.6V
-1
--
Input capacitance
VDD=0V
f=1MHz
--
TBD
pF
Output capacitance
VDD=0V
f=1MHz
--
TBD
pF
CIN1
COUT1
Notes:
* For devices procured with a total ionizing dose tolerance guarantee, the post-irradiation performance is guaranteed at 25°C per MIL-STD-883 Method 1019,
Condition A up toup to o the maximum TID level procured.
1. Measured only for initial qualification and after process or design changes that could affect input/output capacitance.
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DC CHARACTERISTICS FOR BUSSED SIGNALS (Pre and Post-Radiation)*
(VDD = 3.3V + 0.3V; VSS < VIN < VDD; -55°C < TC < 125°C); Unless otherwise noted, TC is per the temperature range ordered
SYMBOL
DESCRIPTION
CONDITIONS
MIN
MAX
UNITS
CON11
Switch ON capacitance
Output is open
f=1MHz, 0.1VDD<Vi<0.9VDD
--
25
pF
CON21
Switch ON capacitance
Broadcast mode, all outputs open
f=1MHz, 0.1VDD<Vi<0.9VDD
--
50
pF
COFF11
Switch OFF capacitance at
input mA
Output is open
f=1MHz
--
19
pF
COFF21
Switch OFF capacitance at
output mBn
Input is open
f=1MHz
--
2
pF
Switch ON resistance
Vo=VSS, VDD, and VDD/2
Iin=40mA
--
12
Ω
Switch ON resistance flatness
Vo=VSS, VDD, and VDD/2
Iin=-40mA
--
5
Ω
IOFF
Switch OFF leakage current
Vi=VSS and Vo=VDD, or
Vi=VDD and Vo=VSS
-2
2
uA
IL
Leakage current for outputs with pull-up resistors
(0B0-7B0, 0B1-7B1, 0B27B2, 0B3-7B3, 0B4-7B4,
0B5-7B5, 0B6-7B6, 0B77B7)
Output is off
Vo=VDD
Vo=VSS
-4
-100
4
-60
uA
uA
IBHHL3
Bus holder switch current
high to low
(8B0-31B0, 8B1-31B1,
8B2-31B2, 8B3-31B3,
8B4-31B4, 8B5-31B5,
8B6-31B6, 8B7-31B7)
Output is off
-500
-150
uA
IBHLH3
Bus holder switch current
low to high
(8B0-31B0, 8B1-31B1,
8B2-31B2, 8B3-31B3,
8B4-31B4, 8B5-31B5,
8B6-31B6, 8B7-31B7)
Output is off
150
500
uA
RON2
RON(flat)2
Notes:
* For devices procured with a total ionizing dose tolerance guarantee, the post-irradiation performance is guaranteed at 25°C per MIL-STD-883 Method 1019,
Condition A up toup to o the maximum TID level procured.
1. Guaranteed by design.
2. Guaranteed by device characterization.
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3. Guaranteed by functional test only.
AC CHARACTERISTICS (Pre and Post-Radiation)*
(VDD = 3.3V + 0.3V; VSS < VIN < VDD; -55°C < TC < 125°C); Unless otherwise noted, TC is per the temperature range ordered
Symbol
Description
tP,BUS1
Bussed signals propagation
delay
tON1
Conditions
MIN
MAX
Units
From any mA input to any mBn output
--
300
ps
Bussed signals ON time
From CS or SEL to any mBn output;
SDCS static
RL=50Ω, CL=50pF
1.7
5.2
ns
tOFF1
Bussed signals OFF time
From CS or SEL to any mBn output;
SDCS static
RL=50Ω, CL=50pF
1.7
5.2
ns
tON22
Bussed signals ON time
From SDCS to any mBn output; CS and
SEL static
RL=50Ω, CL=50pF
1.7
3.2
ns
tOFF22
Bussed signals OFF time
From SDCS to any mBn output; CS and
SEL static
RL=50Ω, CL=50pF
1.7
5.2
ns
Notes:
* For devices procured with a total ionizing dose tolerance guarantee, the post-irradiation performance is guaranteed at 25°C per MIL-STD-883 Method 1019,
Condition A up to the maximum TID level procured.
1. Not tested. The propagation delay through the channel is based upon the RC time constant of the maximum channel resistance and switch ON capacitance, 12Ω
and 25pF.
2. Guaranteed by design
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PARAMETER MEASUREMENT INFORMATION
VDD
100Ω
From Output
Under Test
50pF
100Ω
Figure 2. Load Circuit
VDD
VDD/2
0V
INPUT
VDD/2 + 0.3
3VDD/4
VDD/2
VDD/2
VDD/2 - 0.3
OUTPUT
VDD/4
Notes:
1. The bus input is driven to VDD or VSS through a 50Ω series resistor.
Figure 3. Bussed Signals Turn-on Time
VDD
VDD/2
0V
INPUT
3VDD/4
3VDD/4 - 0.3
VDD/2
OUTPUT
VDD/4 + 0.3
VDD/2
VDD/4
Notes:
1. The bus input is driven to VDD or VSS through a 50Ω series resistor.
Figure 4. Bussed Signals Turn-off Time
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PACKAGING
Figure 6: 400 pin Ceramic Land Grid Array Package (Case Outline Z)
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Figure 7. 400-pin Ceramic Column Grid Array Package (Case Outline S)
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Figure 8. 400-pin Ceramic Ball Grid Array Package (Case Outline C)
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ORDERING INFORMATION
UT32BS1X833 Matrix-D
UT ********* -
*
*
*
Lead Finish:
(A) = Hot Solder Dipped
(C) = Gold
Screening Level: (NOTE 1 & 2)
(P) = Prototype flow (Temperature Range: 25oC only)
(E) = HiRel flow (Temperature Range: -55oC to +125oC)
Case Outline:
(Z) = 400-Ceramic Land Grid Array
(S) = 400-Ceramic Column Grid Array
(C) = 400-Ceramic Ball Grid Array
Device Type:
(32BS1X833) = Matrix-D 32-Channel 1:8 Bus Switch
Notes:
1. Prototype Flow per Aeroflex Manufacturing Flows Document. Devices are tested at 25oC only. Radiation is neither tested nor guaranteed.
2. HiRel Flow per Aeroflex Manufacturing Flows Document. Radiation is neither tested nor guaranteed.
Package Option
Associated Lead Finish
(Z) 400-CLGA
(C) Gold
(S) 400-CCGA
(A) Hot Solder Dipped
(C) 400-CBGA
(A) Hot Solder Dipped
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UT32BS1X833 Matrix-D: SMD
5962
* XXXXX
**
*
*
*
Lead Finish: (NOTE 1)
(C) = Gold
Case Outline: (NOTE 2)
(X) = 400-Ceramic Land Grid Array Package
Screening Level:
(Q) = QML Class Q
(V) = QML Class V
Device Type: (NOTE 3)
(01) = UT32BS1X833 (Temperature range: -55oC to +125oC)
Drawing Number:
TBD
Total Dose:
(R) = 1E5 rad(Si)
(F) = 3E5 rad(Si)
Federal Stock Class Number: No Options
Notes:
1. Lead finish is “C” (gold) only.
2. Aeroflex offers Column Attachment as an additional service for the Ceramic Land Grid Array (Case outline "Y"). If needed, please ask for
COLUMN ATTACHMENT when submitting your request for quotation.
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Aeroflex Colorado Springs - Datasheet Definition
Advanced Datasheet - Product In Development
Preliminary Datasheet - Shipping Prototype
Datasheet - Shipping QML & Reduced Hi-Rel
This product is controlled for export under the International Traffic in Arms Regulations (ITAR). A license from the U.S.
Government is required prior to the export of this product from the United States.
www.aeroflex.com
[email protected]
Aeroflex Colorado Springs, Inc., reserves the right to
make changes to any products and services described
herein at any time without notice. Consult Aeroflex or an
authorized sales representative to verify that the
information in this data sheet is current before using this
product. Aeroflex does not assume any responsibility or
liability arising out of the application or use of any product
or service described herein, except as expressly agreed to
in writing by Aeroflex; nor does the purchase, lease, or
use of a product or service from Aeroflex convey a license
under any patent rights, copyrights, trademark rights, or
any other of the intellectual rights of Aeroflex or of third
parties.
Our passion for performance is defined by three
attributes represented by these three icons:
solution-minded, performance-driven and customer-focused
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