The SY10/100E256 offer three 4:1 multiplexers followed
by latches with differential outputs designed for use in new,
high-performance ECL systems. Separate Select controls
are provided for the leading 2:1 mux pairs (see block
diagram).
When the Latch Enable (LEN) is at a logic LOW, the latch
is transparent and output data is controlled by the multiplexer
select controls. A logic HIGH on LEN latches the outputs.
The Master Reset (MR) overrides all other controls to set
the Q outputs LOW.
BLOCK DIAGRAM
D
0a
D
0b
D
0c
D
0d
PIN NAMES
Pin
D
E
N R
Q
0
Q
0
Function
Parallel Data Inputs
First-stage Select Inputs
Second-stage Select Input
Latch Enable
Master Reset
Data Outputs
V
CC
to Output
D
0x
–D
2x
SEL
1A
, SEL
1B
SEL
2
LEN
D
1a
D
1b
D
1c
D
1d
MR
D
E
N R
Q
1
Q
1
Q
0
, Q
0
–Q
2
, Q
2
V
CCO
D
2a
D
2b
D
2c
D
2d
SEL
1A
SEL
1B
SEL
2
LEN
MR
D
E
N R
Q
2
Q
2
M9999-032206
hbwhelp@micrel.com or (408) 955-1690
Rev.: G
Amendment: /0
1
Issue Date: March 2006
Micrel, Inc.
SY10E256
SY100E256
PACKAGE/ORDERING INFORMATION
Ordering Information
(1)
D
1a
D
2d
D
2c
D
2b
D
2a
V
CCO
D
1b
Part Number
25 24 23 22 21 20 19
Package
Type
J28-1
J28-1
J28-1
J28-1
J28-1
J28-1
J28-1
J28-1
Operating
Range
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Commercial
Package
Marking
SY10E256JC
SY10E256JC
SY100E256JC
SY100E256JC
SY10E256JZ with
Pb-Free bar-line indicator
SY10E256JZ with
Pb-Free bar-line indicator
SY100E256JZ with
Pb-Free bar-line indicator
SY100E256JZ with
Pb-Free bar-line indicator
Lead
Finish
Sn-Pb
Sn-Pb
Sn-Pb
Sn-Pb
Matte-Sn
Matte-Sn
Matte-Sn
Matte-Sn
SY10E256JC
18
17
16
SEL
1A
SEL
1B
SEL
2
V
EE
LEN
MR
D
1c
26
27
28
1
2
3
4
5
6
7
8
9
10 11
Q
2
Q
2
V
CC
Q
1
Q
1
V
CCO
Q
0
SY10E256JCTR
(2)
SY100E256JC
SY100E256JCTR
(2)
SY10E256JZ
(3)
SY10E256JZTR
(2, 3)
SY100E256JZ
(3)
SY100E256JZTR
(2, 3)
TOP VIEW
PLCC
J28-1
15
14
13
12
28-Pin PLCC (J28-1)
Notes:
D
0d
V
CCO
Q
0
D
0a
D
0b
D
0c
D
1d
1. Contact factory for die availability. Dice are guaranteed at T
A
= 25°C, DC Electricals only.
2. Tape and Reel.
3. Pb-Free package is recommended for new designs.
M9999-032206
hbwhelp@micrel.com or (408) 955-1690
2
Micrel, Inc.
SY10E256
SY100E256
TRUTH TABLE
Pin
SEL
2
SEL
1A
SEL
1B
State
H
H
H
Operation
Output c/d Data
Input d Data
Input b Data
DC ELECTRICAL CHARACTERISTICS
V
EE
= V
EE
(Min.) to V
EE
(Max.); V
CC
= V
CCO
= GND
T
A
= 0
°
C
Symbol
I
IH
I
EE
Parameter
Input HIGH Current
Power Supply Current
10E
100E
—
—
69
69
83
83
—
—
69
69
83
83
—
—
69
79
83
96
—
—
150
T
A
= +25
°
C
—
—
150
T
A
= +85
°
C
Max.
150
Unit
µA
mA
Condition
—
—
—
—
Min. Typ. Max. Min. Typ.
Max. Min. Typ.
AC ELECTRICAL CHARACTERISTICS
V
EE
= V
EE
(Min.) to V
EE
(Max.); V
CC
= V
CCO
= GND
T
A
= 0
°
C
Symbol
t
PD
Parameter
Propagation Delay to Output
D
SEL
1
SEL
2
LEN
MR
Set-up Time
D
SEL
1
SEL
2
Hold Time
D
SEL
1
SEL
2
Reset Recovery Time
Minimum Pulse Width, MR
Within-Device Skew
Rise/Fall Time
20% to 80%
T
A
= +25
°
C
T
A
= +85
°
C
Max.
900
1050
900
800
825
ps
400
600
500
300
100
200
700
400
—
275
275
300
250
–275
–300
–250
600
—
50
475
—
—
—
—
—
—
—
—
—
700
400
600
500
300
100
200
700
400
—
275
275
300
250
–275
–300
–250
600
—
50
475
—
—
—
—
—
—
—
—
—
700
400
600
500
300
100
100
700
400
—
275
275
300
250
–275
–300
–250
600
—
50
475
—
—
—
ps
—
—
—
—
—
—
700
ps
ps
ps
ps
—
—
1
—
—
—
Unit
ps
400
550
450
350
350
600
775
650
500
600
900
1050
900
800
825
400
550
450
350
350
600
775
650
500
600
900
1050
900
800
825
400
550
450
350
350
600
775
650
500
600
Condition
—
Min. Typ. Max. Min. Typ.
Max. Min. Typ.
t
S
t
H
t
RR
t
PW
t
skew
t
r
t
f
Note:
1. Within-device skew is defined as identical transitions on similar paths through a device.
M9999-032206
hbwhelp@micrel.com or (408) 955-1690
3
Micrel, Inc.
SY10E256
SY100E256
28-PIN PLCC (J28-1)
Rev. 03
MICREL, INC. 2180 FORTUNE DRIVE SAN JOSE, CA 95131
TEL
USA
+ 1 (408) 944-0800
FAX
+ 1 (408) 474-1000
WEB
http://www.micrel.com
The information furnished by Micrel in this data sheet 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.
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