MICREL SY10H641L, SY100H641L Datasheet

3.3V SINGLE SUPPLY
1:9 PECL-TO-TTL

ClockWorks™

PRELIMINARY

SY10H641L

SY100H641L

FEATURES

■ 3.3V power supply

■ PECL-to-TTL version of popular ECLinPS E111

■ Guaranteed low skew specification

■ Latched input

■ Differential ECL internal design

■ V

BB output for single-ended operation

■ Reset/enable

■ Extra TTL and ECL power/ground pins

■ Choice of ECL compatibility: MECL 10KH (10Hxxx)

or 100K (100Hxxx)

■ Available in 28-pin PLCC package

TTL Outputs

Q

0

Q

1

Q

2

DESCRIPTION

The SY10/100H641L are single supply, low skew
translating 1:9 clock drivers. Devices in the Micrel­Synergy H600 translator series utilize the 28-lead PLCC
for optimal power pinning, signal flow-through and
electrical performance.

The devices feature a 24mA TTL output stage with
AC performance specified into a 20pF load capacitance.
A latch is provided on-chip. When LEN is LOW (or left
open, in which case it is pulled LOW by the internal pull­downs), the latch is transparent. A HIGH on the enable
pin (/EN) forces all outputs LOW.

The 10H version is compatible with MECL 10KH ECL
logic levels. The 100H version is compatible with 100K
levels.

PIN CONFIGURATIONBLOCK DIAGRAM

7

6

T

T

V

Q

G

25

24 23 22 21 20 19

G
Q

Q

Q
G

26

T

27

5

28

V

T

1

4

2

V

T

3

3

4

T

TOP VIEW

PLCC

567891011

8

T

T

V

Q

Q

G

18

V

BB

17

D

16

D

15

V

E

14

LEN

13

G

E

12

EN

PECL Input

D
D

V

BB

LEN

EN

DQ

Q

3

Q

4

PIN NAMES

2

1

0

T

T

T

V

Q

G

Q

T

V

Q

G

Pin Function

Q

5

GT TTL Ground (0V)
VT TTL VCC (+3.0V)

Q

6

VE ECL VCC (+3.0V)
GE ECL Ground (0V)
D, /D Signal Input (PECL)

Q

7

VBB VBB Reference Output (PECL)
Q0 – Q8 Signal Outputs (TTL)
/EN Enable Input (PECL)

Q

8

LEN Latch Enable Input (PECL)

1

Rev.: D Amendment: /0
Issue Date: May 2000

Micrel

ClockWorks™

PRELIMINARY

SY10H641L

SY100H641L

ABSOLUTE MAXIMUM RATINGS

(1)

Symbol Rating Value Unit

E (ECL) Power Supply –0.5 to +7.0 V

V
VT (TTL) Voltage –0.5 to +7.0

VI (ECL) Input Voltage 0.0 to VE V
V

OUT (TTL) Disabled 3-State 0.0 to VT V

Output

I

OUT (ECL) Output Current mA

TRUTH TABLE

D LEN /EN Q

LL LL
HL LH
XH LQ0
XX HL

- Continuous 50

- Surge 100
Tstore Storage Temperature –65 to +150 °C
T

A Operating Temperature 0 to +85 °C

NOTE:

1. Do not exceed.

DC ELECTRICAL CHARACTERISTICS

VT = VE = +3.0V to +3.6V

TA = 0°CTA = +25°CTA = +85°C

Symbol Parameter Min. Max. Min. Max. Min. Max. Unit Condition

EE Power Supply Current ECL — 30 — 30 — 30 mA VE Pin

I

CCH TTL — 30 — 30 — 30 Total all VT pins

I

CCL —35 —35 — 35

I

TTL DC ELECTRICAL CHARACTERISTICS

VT = VE = +3.0V to +3.6V

TA = 0°CTA = +25°CTA = +85°C

Symbol Parameter Min. Max. Min. Max. Min. Max. Unit Condition

VOH Output HIGH Voltage 2.0 — 2.0 — 2.0 — V IOH = –3.0mA
VOL Output LOW Voltage — 0.5 — 0.5 — 0.5 V IOL = 24mA

OS Output Short Circuit Current –100 — –100 — –100 — mA VOUT = 0V

I

10H ECL DC ELECTRICAL CHARACTERISTICS

VT = VE = +3.0V to +3.6V

TA = 0°CTA = +25°CTA = +85°C

Symbol Parameter Min. Max. Min. Max. Min. Max. Unit Condition

IIH Input HIGH Current — 225 — 175 — 175 µA—
IIL Input LOW Current 0.5 — 0.5 — 0.5 — µA—

(1)

(1)

(1)

2.130 2.460 2.170 2.490 2.240 2.580 V VE = 3.3V

1.350 1.820 1.350 1.820 1.350 1.855 V VE = 3.3V

1.920 2.030 1.950 2.050 1.990 2.110 V VE = 3.3V

VIH Input HIGH Voltage
VIL Input LOW Voltage
VBB Output Reference Voltage

NOTE:

1. VIH, VIL and VBB are referenced to VE and will vary 1:1 with the power supply. The levels shown are for VE = +3.3V.

2