SY100S891JZTR [MICREL]
5-BIT REGISTERED TRANSCEIVER; 5位寄存收发器
| 型号： | SY100S891JZTR |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | 5-BIT REGISTERED TRANSCEIVER |
| 文件： | 总6页 (文件大小：70K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
SY100S891
5-BIT REGISTERED
TRANSCEIVER
FEATURES
DESCRIPTION
■ 25Ω cut-off bus outputs
The SY100S891 is a 5-bit registered transceiver
containing five bus transceivers with both transmit and
receive registers. The bus outputs (BUS0 – BUS4) are
specified for driving a 25 ohm bus and the receive outputs
(Q0 – Q4) are specified for driving a 50 ohm line. The
bus outputs have a normal high level output voltage and
a normal low level output voltage when the bus enable
(BUSEN0 – BUSEN4) is high. However, the output is
switched to a cut-off level when a bus-enable is low.
This cut-off level is sufficiently low that a relatively high
impedance is presented to the bus in order to minimize
reflections. There is one bus-enable for each bus driver;
a clock (CLK1) which is common to all five bus driver
registers; and a separate clock (CLK2) which is common
to all five receive registers. Data at the D inputs is clocked
to the Bus register by a positive transition of CLK1 and
data on the bus is clocked into the Receiver register by
a positive transition of CLK2. A high on the Master Reset
clears all registers.
■ 50Ω receiver outputs
■ Transmit and receive registers with separate clocks
■ 1500ps max. delay from CLK1 to Bus Outputs (BUS)
■ 1500ps max. delay from CLK2 to Receiver Outputs (Q)
■ Individual bus enable pins
■ Internal 75KΩ input pull-down resistors
■ Voltage and temperature compensation for improved
noise immunity
■ Industry standard 100K ECL levels
■ Extended supply voltage option:
VEE = –4.2V to –5.5V
■ Available in 28-pin PLCC package
PIN NAMES
Pin
BUSEN0–4
D0 – D4
CLK1
Function
Bus Enable Inputs
Data Inputs
Bus Driver Clock Input
Receive Register Clock
Master Reset
CLK2
MR
Q0 – Q4
BUS0–4
Bus Receive Outputs
Bus Outputs
Rev.: F
Amendment:/0
M9999-032406
hbwhelp@micrel.com or (408) 955-1690
1
Issue Date: March 2006
Micrel, Inc.
SY100S891
PACKAGE/ORDERING INFORMATION
Ordering Information
Package Operating
Package
Marking
Lead
Finish
Part Number
Type
Range
25 24 23 22 21 20 19
SY100S891JC
J28-1
Commercial
SY100S891JC
SY100S891JC
Sn-Pb
Sn-Pb
MR
26
27
28
1
18
17
16
15
14
13
12
Q
3
SY100S891JCTR(1)
SY100S891JZ(2)
J28-1
J28-1
Commercial
Commercial
CLK
2
1
BUS
3
2
CLK
VCC
SY100S891JC with
Pb-Free bar-line indicator
Matte-Sn
TOP VIEW
PLCC
J28-1
VEE
Q
2
2
D2
BUS
SY100S891JZTR(1, 2)
J28-1
Commercial
SY100S891JC with
Pb-Free bar-line indicator
Matte-Sn
BUSEN
D
2
3
VCCA
4
1
Q1
5
6
7
8
9
10 11
Notes:
1. Tape and Reel.
2. Pb-Free package is recommended for new designs.
28-Pin PLCC (J28-1)
M9999-032406
hbwhelp@micrel.com or (408) 955-1690
2
Micrel, Inc.
SY100S891
BLOCK DIAGRAM
25Ω CUTOFF
50Ω
D Q
R C
D0
BUS
0
D Q
R C
Q
0
BUSEN
0
25Ω CUTOFF
50Ω
D Q
R C
D1
BUS
1
D Q
R C
Q
1
BUSEN
1
25Ω CUTOFF
50Ω
D Q
R C
D
2
BUS
2
3
D Q
R C
Q
2
BUSEN
2
25Ω CUTOFF
50Ω
D Q
R C
D3
BUS
D Q
R C
Q
3
BUSEN
3
25Ω CUTOFF
50Ω
D Q
R C
D
4
BUS
4
D Q
R C
Q
4
BUSEN
4
MR
CLK
CLK
1
2
M9999-032406
hbwhelp@micrel.com or (408) 955-1690
3
Micrel, Inc.
SY100S891
DC ELECTRICAL CHARACTERISTICS
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
Symbol
Parameter
Min.
Typ.
Max.
Unit
Condition
VCUT
Cut-off Bus Output Voltage
–2200 –2160 –2100
mV
VIN = VIH (Max.) or VIL (Min.)
Loading with
25Ω to –2.20V
Loading with
25Ω to –2.0V
VOH
VOL
Output HIGH Voltage Bus
Output LOW Voltage Bus
Output HIGH Voltage Bus
Output LOW Voltage Bus
–1025 –955
–880
mV
mV
mV
mV
VIN = VIH (Max.) or VIL (Min.)
VIN = VIH (Min.) or VIL (Max.)
–1810 –1705 –1620
VOHA
VOLA
–1035
—
—
—
—
–1610
VOH
VOL
Output HIGH Voltage Receiver –1025 –955
–880
mV
mV
VIN = VIH (Max.) or VIL (Min.)
VIN = VIH (Min.) or VIL (Max.)
Loading with
Output LOW Voltage Receiver –1810 –1705 –1620
50Ω to –2.0V
VOHA
VOLA
Output HIGH Voltage Receiver –1035
—
—
—
–1610
mV
mV
Output LOW Voltage Receiver
—
–1165
–1810
0.5
VIH
VIL
IIL
Input HIGH Voltage
—
—
—
—
—
4
–880
–1475
—
mV
mV
µA
µA
mA
pF
Guaranteed HIGH Signal for All Inputs
Guaranteed LOW Signal for All Inputs
VIN = VIL (Min.)
Input LOW Voltage
Input LOW Current
IIH
Input High Current
—
150
—
VIN = VIH (Max.)
IEE
CIN
COUT
Power Supply Current
Input Pin Capacitance
Output Pin Capacitance
–216
—
Inputs Open
—
—
5
—
pF
M9999-032406
hbwhelp@micrel.com or (408) 955-1690
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Micrel, Inc.
SY100S891
AC ELECTRICAL CHARACTERISTICS
VEE = –4.2V to –5.5V unless otherwise specified; VCC = VCCA = GND
TA = 0°C TA = +25°C
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
TA = +85°C
Symbol
Parameter
Condition
tPLH
tPHL
Propagation Delay(1)
CLK1 to Bus
600 1000 1500 600 1000 1500 600 1000 1500
ps
ps
ps
ps
ps
ps
tPLH
tPHL
Propagation Delay(2)
CLK2 to Q
500
500
800 1200 500
800 1200 500
800 1200 500
800 1200 500
800 1200
800 1200
tPLH
tPHL
Propagation Delay(1)
BUSEN to Bus
tPLH
tPHL
Propagation Delay(1)
Master Reset to Bus
600 1000 1500 600 1000 1500 600 1000 1500
tPLH
tPHL
Propagation Delay(2)
Master Reset to Q
500
800 1200 500
800 1200 500
800 1200
tS
Set-up Time
Bus Wrt CLK2
D Wrt CLK1
—
—
—
—
400
400
—
—
—
—
400
400
—
—
—
—
400
400
tREL
tH
Master Reset
Release Time
—
—
1000
—
—
1000
—
—
1000
ps
ps
Hold Time
Bus Wrt CLK2
D Wrt CLK1
—
—
—
—
400
400
—
—
—
—
400
400
—
—
—
—
400
400
tr
Output Rise Time
ps
ps
ps
Bus(3)
Q(4)
500
300
—
—
1000 500
900 300
—
—
1000 500
900 300
—
—
1000
900
tf
Output Fall Time
Bus(3)
Q(4)
500
300
—
—
1000 500
—
—
1000 500
—
—
1000
900
900
300
900
300
tskew
Skew (Maximum
—
100
—
—
100
—
—
100
—
difference between
slowest and fastest path)
Notes:
1. Loaded with 25Ω to –2.0V
2. Loaded with 50Ω to –2.0V
3. 25Ω Load
4. 50Ω Load
M9999-032406
hbwhelp@micrel.com or (408) 955-1690
5
Micrel, Inc.
SY100S891
28-PIN PLCC (J28-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131 USA
TEL + 1 (408) 944-0800 FAX + 1 (408) 474-1000 WEB http://www.micrel.com
The information furnished by Micrel in this datasheet is believed to be accurate and reliable. However, no responsibility is assumed by Micrel for its use.
Micrel reserves the right to change circuitry and specifications at any time without notification to the customer.
Micrel Products are not designed or authorized for use as components in life support appliances, devices or systems where malfunction of a product can
reasonably be expected to result in personal injury. Life support devices or systems are devices or systems that (a) are intended for surgical implant into
the body or (b) support or sustain life, and whose failure to perform can be reasonably expected to result in a significant injury to the user. A Purchaser’s
use or sale of Micrel Products for use in life support appliances, devices or systems is at Purchaser’s own risk and Purchaser agrees to fully indemnify
Micrel for any damages resulting from such use or sale.
© 2006 Micrel, Incorporated.
M9999-032406
hbwhelp@micrel.com or (408) 955-1690
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