SY100E193 [MICREL]
ERROR DETECTION/ CORRECTION CIRCUIT; 检错/纠错电路
| 型号： | SY100E193 |
| 厂家： | 
MICREL SEMICONDUCTOR |
| 描述： | ERROR DETECTION/ CORRECTION CIRCUIT |
| 文件： | 总4页 (文件大小：66K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
ERROR DETECTION/
CORRECTION CIRCUIT
SY10E193
SY100E193
FEATURES
DESCRIPTION
■ Hamming code generation
■ Extended 100E VEE range of –4.2V to –5.5V
■ 8-bit wide
The SY10/100E193 are error detection and correction
(EDAC) circuits designed for use in new, high- performance
ECL systems. The E193 generates hamming parity codes
on an 8-bit word as shown in the block diagram. The P5
output gives the parity of the whole word. PGEN provides
word parity after Odd/Even parity control and gating with
the BPAR input. PGEN also feeds into a 1-bit shiftable
register for use as part of a scan ring.
The combinatorial part of the device generates the same
code pattern as the Motorola MC10193.
Used in conjunction with 12-bit parity generators, such
as the E160, a SECDED (single error correction, double
error detection) error system can be designed for a multiple
of an 8-bit word.
■ Expandable for more width
■ Provides parity register
■ Fully compatible with industry standard 10KH,
100K ECL levels
■ Internal75KΩ input pulldown resistors
■ Fully compatible with Motorola MC10E/100E193
■ Available in 28-pin PLCC package
PIN CONFIGURATION
PIN NAMES
Pin
Function
Check Bit Inputs
B0–B7
BPAR
EV/OD
EN
Check Bit Parity Input
Even/Odd Parity Select
Parity Enable
25 24 23 22 21 20 19
EV/OD
BPAR
26
27
28
1
18
17
16
15
14
13
12
PARERR
PARERR
HOLD
S-IN
Syndrome Hold Input
Syndrome Bit Input
Syndrome Bit Shift
Clock Input
B
0
V
P
V
P
P
CC
5
TOP VIEW
PLCC
V
EE
J28-1
SHIFT
CLK
2
B
1
CCO
4
3
B
B
2
3
4
3
P1–P5
PGEN
Parity Output
5
6
7
8
9
10 11
Parity Generate Output
Parity Error Output
VCC to Output
PARERR/PARERR
VCCO
Rev.: C
Amendment: /1
Issue Date: February, 1998
1
SY10E193
SY100E193
Micrel
BLOCK DIAGRAM
B INPUTS
0 3 6 5 7 4 2 1
B2, B3, B6, B7
B1, B3, B5, B7
B4, B5, B6, B7
P
2
1
P
P3
P4
P5
B1, B2, B4, B7
BYTE (B0 – B7)
PGEN
BPAR
EV/OD
PARERR
PARERR
0
1
0
1
D
EN
HOLD
S-IN
SHIFT
CLK
2
SY10E193
SY100E193
Micrel
DC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND
TA = 0°C
TA = +25°C
TA = +85°C
Symbol
IIH
Parameter
Input HIGH Current
Power Supply Current
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
Condition
—
—
150
—
—
150
—
—
150
µA
—
—
IEE
mA
10E
100E
—
—
112 134
112 134
—
—
112
112
134
134
—
—
112
129
134
155
AC ELECTRICAL CHARACTERISTICS
VEE = VEE (Min.) to VEE (Max.); VCC = VCCO = GND
TA = 0°C
TA = +25°C
TA = +85°C
Symbol
Parameter
Min. Typ. Max. Min. Typ. Max. Min. Typ. Max. Unit
Condition
tPLH
tPHL
Propagation Delay to Output
B to P1, P2, P3, P4
B to P5
ps
350 700 1000 350 700 1000 350 700 1000
400 775 1150 400 775 1150 400 775 1150
—
EV/OD, BPAR to PGEN
B to PGEN
350 650 850 350 650
600 1000 1450 600 1000 1450 600 1000 1450
850 350 650
850
CLK to PARERR
300 550 850 300 550
850 300 550
850
tS
Set-up Time
SHIFT
S-IN
HOLD
EN
EV/OD
BPAR
B
ps
ps
ps
—
—
—
400 150
300 50
—
—
—
—
—
—
—
400 150
300 50
—
—
—
—
—
—
—
400 150
300 50
—
—
—
—
—
—
—
750 350
500 250
1300 850
1300 850
1700 1100
750 350
500 250
1300 850
1300 850
1700 1100
750 350
500 250
1300 850
1300 850
1700 1100
tH
Hold Time
SHIFT
S-IN
HOLD
EN
EV/OD
BPAR
B
200 –150
300 –50
100 –350
100 –250
–200 –850
–200 –850
–300 –1100
—
—
—
—
—
—
—
200 –150
300 –50
100 –350
100 –250
–200 –850
–200 –850
–300 –1100
—
—
—
—
—
—
—
200 –150
300 –50
100 –350
100 –250
–200 –850
–200 –850
–300 –1100
—
—
—
—
—
—
—
tr
tf
Rise/Fall Time
20% to 80%
300 700 1100 300 700 1100 300 700 1100
PRODUCT ORDERING CODE
Ordering
Code
Package
Type
Operating
Range
SY10E193JC
J28-1
J28-1
J28-1
J28-1
Commercial
Commercial
Commercial
Commercial
SY10E193JCTR
SY100E193JC
SY100E193JCTR
3
SY10E193
SY100E193
Micrel
28 LEAD PLCC (J28-1)
Rev. 03
MICREL-SYNERGY 3250 SCOTT BOULEVARD SANTA CLARA CA 95054 USA
TEL + 1 (408) 980-9191 FAX + 1 (408) 914-7878 WEB http://www.micrel.com
This information is believed to be accurate and reliable, however no responsibility is assumed by Micrel for its use nor for any infringement of patents or
other rights of third parties resulting from its use. No license is granted by implication or otherwise under any patent or patent right of Micrel Inc.
© 2000 Micrel Incorporated
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