ANALOG DEVICES ADM1487E Service Manual

PRELIMINARY TECHNICAL DATA

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Ultra-Low Power RS-485/RS-422 Transceiver

a

Preliminary Technical Data

FEATURES

Low Power - 120µA Max ICC with Driver Disabled
High Input Impedance — Up to 256 Transceivers on Bus
Low-Current (1µA) Shutdown Mode
Slew Rate Control for Error-Free Data

Transmission and Low EMI
±10kV ESD Protection (Human Body Model) on
RS-485 I/O pins
Thermal Protection of Driver
Glitch-Free Driver Power-Up Allows Hot Connection
Driver Maintains High Output Impedance with Power

Off
Wide Common-Mode Range Allows ±7V Ground Differ-

ences Between Devices
Pin-Compatible with Industry Standard 75176

APPLICATIONS

Battery-Powered RS-485/RS-422 Systems
Level Translation

with Low EMI and +/-10kV ESD Protection

ADM1487

GENERAL DESCRIPTION

The ADM1487 is an ultra-low power RS-485/RS-422
transceiver consisting of one driver and one receiver per
package. Quiescent operating current is typically 80µA
and 1µA in shutdown mode. The driver and receiver both
have three-state outputs. This allows multiple drivers to be
connected to an RS-485/RS-422 bus, or several receiver
outputs to be connected to a serial data bus. The driver
will maintain a high-impedance output state even with
power off, while the receiver features fail-safe operation
that guarantees a logic high output if the inputs are left
open-circuit.

The device has slew-rate limited drivers to minimize elec­tromagnetic interference (EMI) and reduce reflections
caused by incorrectly terminated cables.

FUNCTIONAL BLOCK DIAGRAM

RO

1

2

RE

3

DE

4

DI

ADM1487

REV. PrC 08/02

Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.

V

8

R

D

One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: [phone] www.analog.com
Fax: [phone] Analog Devices, Inc., 2002

CC

7

B

6

A
GND

5

–1–

PRELIMINARY TECHNICAL DA T A

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ADM1487

ADM1487 SPECIFICATIONS

DC ELECTRICAL CHARACTERISTICS

(VCC = +5V ±5%, TA = 0°C TO +70°C, UNLESS OTHERWISE NOTED)

Parameter Min Typ Max Units Test Conditions/Comments

Differential Driver Output Voltage,V

Differential Driver Output Voltage, V

OD1

OD2

2.0 V Figure 1, R = 50 (RS-422)

5 V Unloaded, IO = 0

1.5 5 V Figure 1, R = 27 (RS-485)

Change in Magnitude of Driver 0.2 V Figure 1, R = 27 or R = 50
Differential Output Voltage for
Complementary Output States, 

VOD

Driver Common-Mode Output 3 V Figure 1, R = 27 or R = 50
Voltage, V

OC

Change in Magnitude of Driver 0.2 V R = 27 or R = 50
Common-Mode Output Voltage for
Complementary Output States, |VOC|

Input High Voltage (DE, DI, RE), V

Input Low Voltage (DE, DI, RE), V

Input Current (DE, DI, RE), I

Input Current (A, B), I

IN2

IN1

IH

IL

2V

0.8 V

±2 µA

0.30 mA DE = 0, VCC= 0V or 5.25V, VIN = 12V

-0.15 mA DE = 0, VCC = 0V or 5.25V, VIN = –7V

Differential Input Threshold Voltage -0.2 0.2 V –7V  V
for Receiver, V

Receiver Input Hysteresis, V

Receiver Output High Voltage, V

Receiver Output Low Voltage, V

TH

TH

OL

OH

45 mV VCM = 0V

3.5 V IO =-4mA, VID = 200mV

0.4 V IO = 4mA, VID = –200mV

 12V

CM

Three-State (High Impedance) Output ±1 µA VCC = Max, 0.4V  Vo  2.4V
Current at Receive, I

Receiver Input Resistance, R

Supply Current, I

CC

OZR

IN

70 96 k –7V  VCM  12V

120 200 µA No Load, Output Enabled

80 120 µA No Load, Output Disabled

Supply Current in Shutdown Mode, I

Driver Short-Circuit Ourrent, I

Driver Short-Circuit Ourrent, I

Receiver Short-Circuit Current, I

SHDN

OSD1

OSD2

OSR

35 250 mA V

35 250 mA V

7 85 mA 0V  VO  V

1 10 µA DE = 0V, RE = V

–2–

CC

= HIGH, –7V  VO 12V

OUT

= LOW, –7V  Vo  12V

OUT

OC

Rev. PrC

ADM1487 SPECIFICATIONS (continued)

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PRELIMINARY TECHNICAL DATA

ADM1487

ELECTRICAL CHARACTERISTICS

(VCC = +5V ±5%, TA = -40°C TO +85°C, UNLESS OTHERWISE NOTED)

Parameter Min Typ Max Units Test Conditions/Comments

Differential Driver Output Voltage, V

Differential Driver Output Voltage, V

OD1

OD2

2.0 V Figure 1, R = 50 (RS-422)

5 V Unloaded, IO = 0

1.5 5 V Figure 1, R = 27 (RS-485)

Driver Common-Mode 3 V Figure 1, R = 27 or R = 50
Output Voltage, V

OC

Differential Input Threshold –0.2 0.2 V –7V  VCM  12V
Voltage for Receiver, V

Receiver Input Hysteresis, V

Supply Current, I

CC

TH

TH

45 mV VCM = 0V

120 200 µA No Load, Output Enabled

80 120 µA No Load, Output Disabled

Supply Current in Shutdown Mode, I

Driver Input to Output High, t

SHDN

DPLH

150 1200 ns Figures 2, 3, R

1 10 µ A DE = 0V, RE = V

DIFF

CC

= 54,

CL1 = CL2 = 100pF

Driver Input to Output Low, t

DPHL

150 1200 ns Figures 2, 3, R

DIFF

= 54,

CL1 = CL2 = 100pF

Driver Output to Output, t

SKEW

100 600 ns Figures 2, 3, R

DIFF

= 54,

CL1 = CL2 = 100pF

Driver Rise or Fall Time, t

DR

, t

DF

150 2000 ns Figures 2, 3, R

DIFF

= 54,

CL1 = CL2 = 100pF

Receiver Input to Output High, t

RPLH

30 140 250 ns Figures 2, 4, R

DIFF

= 54,

CL1 = CL2 = 100pF

Receiver Input to Output Low, t

RHL

30 140 250 ns Figures 2, 4, R

DIFF

= 54,

CL1 = CL2 = 100pF

Differential Receiver Skew, t
|t

RPLH-tRPHL

| CL1 = CL2 = 100pF

Maximum Data Rate, f

SWITCHING CHARACTERISTICS

SKD

MAX

(VCC = +5V ±5%, TA = -40°C TO +85°C, UNLESS OTHERWISE NOTED)

250 kbps

13 ns Figures 2, 4, R

DIFF

= 54,

Parameter Min Typ Max Units Test Conditions/Comments

Driver Input to Output High, t

DPLH

150 1200 ns Figures 2, 3, R

DIFF

= 54,

CL1 = CL2 = 100pF

Driver Input to Output, t

DPHL

150 1200 ns Figures 2, 3, R

DIFF

= 54,

CL1 = CL2 = 100pF

Driver Output to Output, t

SKEW

250 600 ns Figures 2, 3, R

DIFF

= 54,

CL1 = CL2 = 100pF

Driver Rise or Fall Time, t

DR

, t

DF

150 1200 ns Figures 2, 3, R

DIFF

= 54,

CL1 = CL2 = 100pF

Driver Enable to Output High, t

Driver Enable to Output Low, t

Driver Disable Time from Low, t

Rev. PrC –3–

DZH

DZL

DLZ

100 1500 ns Figures 5, 6, CL = 100pF, S2 Closed

100 1500 ns Figures 5, 6, CL = 100pF, S1 Closed

150 1500 ns Figures 5, 6, CL = l5pF, S1 Closed

PRELIMINARY TECHNICAL DA T A

ADM1487

TOP VIEW

(Not to Scale)

RO

RE

DE

DI

V

CC

B

A
GND

1

2

3

4

8

7

6

5

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ADM1487

ADM1487 SPECIFICATIONS (continued)

SWITCHING CHARACTERISTICS

(VCC = +5V ±5%, TA = -40°C TO +85°C, UNLESS OTHERWISE NOTED)

Parameter Min Typ Max Units Test Conditions/Comments

Driver Disable Time from High, t

Receiver Input to Output, t

RPLH

DHZ

150 1500 ns Figures 5, 6, CL= l5pF, S2 Closed

30 140 250 ns Figures.2, 4, R

DIFF

= 54,

CL1 = CL2 = 100pF

Receiver Input to Output Low, t

RPHL

30 140 250 ns Figures.2, 4, R

DIFF

= 54,

CL1 = CL2 = 100pF

DifferentialReceiverSkew, t
|t

PLH-tPHL

| CL1 = CL2 = 100pF

Receiver Enable to Output Low, t

Receiver Enable to Output High, t

Receiver Disable from Low, t

Receiver Disable from High, t

Maximum Data Rate, f

Time to Shutdown, t

SKD

RZL

RZH

RLZ

RHZ

MAX

SHDN

250 kbps

50 200 600 ns DE = 0, RE = low to high transition

13 ns Figures.2, 4, R

DIFF

= 54,

20 50 ns Figures 7, 8, CRL = l5pF, S1 Closed

20 50 ns Figures 7, 8, CRL = l5pF, S2 Closed

20 50 ns Figures 7, 8, CRL = l5pF, S1 Closed

20 50 ns Figures 7, 8, CRL = l5pF, S2 Closed

Driver Enable from Shutdown to 2000 ns Figures 5, 6, CL = 100pF, S2 Closed
Output High, t

DZH(SHDN)

Driver Enable from Shutdown to 2000 ns Figures 5, 6, CL = 100pF, S1 Closed
Output Low, t

DZL(SHDN)

Receiver Enable from Shutdown to 2000 ns Figures 7, 8, CL = l5pF, S2 Closed
Output High, t

RZH(SHDN)

Receiver Enable from Shutdown to 2000 ns Figures 7, 8, CL = l5pF, S1 Closed
Output Low, t

RZL(SHDN)

NOTES

1

Absolute maximum ratings are those beyond which the safety of the device cannot be guaranfeed.

2

All currents into device pins are positive; all currents out ot device pins are negative. All voltages are referenced to device ground unless otherwise specified.

3

All typicals are given for Vcc = 5V and Tp = 25°C.

4

The ADM1487 is not tested and is not quality-assurance sampled at -40°C and at 85°C. These specifications are guaranteed by design, correlation, andlor inference from
0°C, 25°C and/or 70°C tests.

ABSOLUTE MAXIMUM RATINGS

Supply Voltage (Vcc) . . . . . . . . . . . . . . . . . . . . . . . . . . 12V

Control Input Voltage . . . . . . . . . . . –0.5V to Vcc + 0.5V

Driver Input Voltage . . . . . . . . . . . –0.5V to Vcc + 0.5V

Driver Output Voltage . . . . . . . . . . . . . . . . . . . . . . . . ±14V

Receiver InputVoltage . . . . . . . . . . . . . . . . . . . . . . . . ±14V

Receiver Output Voltage . . . . . . . . . –0.5V to Vcc + 0.5V

Operating Temperature Range . . . . . . 0°C  T

 70°C

A

Lead Temperature (Soldering, 10 sec) . . . . . . . . . 300°C

*Stresses above those listed under “Absolute Maximum Ratings” may cause permanent

damage to the device. This is a stress rating only; functional operation of the device
at these or any other conditions above those indicated in the operational section of this
specification is not implied. Exposure to absolute maximum rating conditions for
extended periods may affect device reliability.

THERMAL CHARACTERISTICS

8-Pin Plastic DIP Package

θ

= tbd K/Watt, θ

JA

8-Pin Plastic SO Package

θ

= tbd K/Watt, θ

JA

= tbd K/Watt

JC

= tbd K/Watt

JC

–4–

PIN CONFIGURATION

ORDERING INFORMATION

Model Temperature Range Package Option

ADM1487JN 0°C to +70°C 8 Pin Plastic DIP

ADM1487JR 0°C to +70°C 8 Pin SO

ADM1487AN –40°C to +85°C 8 Pin Plastic DIP

ADM1487AR –40°C to +85°C 8 Pin SO

Rev. PrC

ADM1487 TEST CIRCUITS AND TIMING

3V

0V

DE

A, B

A, B

V

OL

t

DZL(SHDN)

, t

DZL

t

DLZ

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

1.5V

2.3V

VOL+ 0.5V

VOH- 0.5V

V

OL

t

DZH(SHDN)

,

t

DZH

t

DHZ

2.3
V

f = 1MHz, t

r

# 10ns, tf # 10ns

5V

V

OH

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PRELIMINARY TECHNICAL DATA

A

R

V

OD

R

A

Figure 1. Driver DC Load Test Circuit

3V

DE

DI

A

D

V

R

OD2

B

DIFF

V

OC

Figure 5. Test Load for Driver Enable/Disable Time Test

C

C

A

L1

R

B

L2

15pF

RO

OUTPUT

UNDER

TEST

C

RL

15pF

TEST

POINT

500V

ADM1487

V

CC

S1

S2

Figure 2. Driver/Receiver Timing Test Circuit

3V

DI

V

DIFF

1.5V

0V

B

V

0

A

V

0

0V

10%

-V

0

f = 1MHz, t

t

DPLH

V

/2

0

90%

t

DR

# 10ns, tf # 10ns

r

V

= VA - V

DIFF

= |t

t

SKEW

DPLH-tDPHL

B

Figure 3. Driver Propagation Delays

RO

t

RPHL

f = 1MHz, t

V

A

OD2

-V

B

OD2

V

OH

V

OL

# 10ns, tf # 10ns

r

Figure 4. Receiver Propagation Delays

Figure 6. Driver Enable and Disable Times

t

D

PHL

TEST

90%

10%

t

DF

|

t

RPLH

1.5V

Figure 7. Test Load for Receiver Enable/Disable Time Test

3V

RE

0V

5V

RO

5V

RO

0V

RO

1.5

1.5

V

V

t

RZL(SHDN)

t

RZH(SHDN)

f = 1MHz, t

, t

, t

POINT

C

RL

15pF

# 10ns, tf # 10ns

r

RZL

OUTPUT NORMALLY LOW

OUTPUT NORMALLY HIGH

RZH

V

CC

1kV

S1

S2

1kV

1.5

t

RLZ

t

RHZ

V

0.5V

0.5V

Figure 8. Receiver Enable and Disable Delay Times

Rev. PrC –5–

PRELIMINARY TECHNICAL DA T A

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ADM1487

ADM1487 TYPICAL PERFORMANCE CHARACTERISTICS

TA

A

D

G

N

TI

I

A

W

A

TPC1. No-load Supply Current vs. Tem-

perature

TA

A

D

G

N

TI

I

A

W

A

TA

A

D

G

N

I

T

I

A

W

A

TPC2. Output Current vs. Receiver Out-

put High Voltage

TA

A

D

G

N

TI

I

A

W

A

TA

A

D

G

N

TI

I

A

W

A

TPC3. Output Current vs. Receiver Out-

put Low Voltage

TA

A

D

G

N

TI

I

A

W

A

TPC4. Receiver Output High

Voltage vs. Temperature

PIN FUNCTION DESCRIPTION

Pin Mnemonic Description

1 R O Receiver Output. When RE is low and A - B  (more positive than) 200mV, RO will be high.

When RE is low and A - B  (more negative than) –200mV, RO will be low.

2 RE Receiver Output Enable. Take RE low to enable RO; RO is high impedance when RE is high.

Take RE high and DE low to enter low-power shutdown mode.

3 D E Driver Output Enable. Take DE high to enable driver outputs. These outputs are high

impedance when DE is low. Take RE high and DE low to enter low-power shutdown mode.

4 D I Driver Input. With DE high, a low on DI forces non-inverting output low and inverting output

high. Similarly, a high on DI forces non-inverting output high and inverting output low.

5 GND Ground

6 A Non-Inverting Receiver Input and Non-Inverting Driver Output

7 B Inverting Receiver Input and Inverting Driver Output

8V

CC

Positive Supply 4.75V =VCC =5.25V

TPC5. Receiver Output Low

Voltage vs. Temperature

–6–

TPC6. Shutdown Current vs.

Temperature

Rev. PrC

DEVICE TRUTH TABLES

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PRELIMINARY TECHNICAL DATA

TRANSMITTING

INPUTS OUTPUTS

RE DE DI Z Y

X11 0 1
X10 1 0

0 0 X High-Z High-Z
1 0 X Shutdown*

ADM1487

RECEIVING

INPUTS OUTPUT

RE DE A-B RO

0X 0.2V 1
0X -0.2V 0
0 X Open/shorted 1
1 0 X Shutdown*

X = Don’t care

CIRCUIT DESCRIPTION

The ADM1487 is a differential input, differential output
transceiver designed RS-485/RS-422 serial data communi­cations over twisted-pair cables. It is a half-duplex device
intended for alternate transmission and reception of data
over a single twisted-pair cable, and the driver outputs and
receiver inputs are internally linked and brought out to a
single pair of pins.

Its principal features include ultra-low power operation, a
controlled slew-rate driver that minimizes electromagnetic
interference (EMI) and signals reflections due to incor­rectly terminated lines, and high input impedance that al­lows up to 256 receivers to be connected to a bus.

THREE-STATE BUS CONNECTION

The ADM1487 has a Driver Enable pin (DE) that enables
the driver outputs when taken high or puts the driver out­puts into a high-impedance state when taken low. This al­lows several driver outputs to be connected to an RS-422/
RS-485 bus.

Similarly, the device has a (active-low) Receiver Enable
pin (RE). Taking this low enables the receiver, while tak­ing it high puts the receiver outputs into a high-impedance
state. This allows several receiver outputs to be connected
to a serial data bus.

The input impedance of the device is 96k, which is 8
times higher than the standard RS-485 load of 12k. A
standard driver can driver 32 standard loads, so up to 256
ADM1487 receivers, or a combination of ADM1487 and
other devices up to 32 unit loads, may be connected to an
RS-422/RS485 bus driven by a single driver.

LOW POWER OPERATION

The ADM1487 draws very little supply current (typically
80µA) when the driver outputs are disabled or unloaded.
This will increase by up to 72µA if the driver outputs are
enabled (but unloaded) and applying the maximum output
swing of 5V across the receiver input resistors.

However, in practical applications with the device driving
and RS-485/RS422 cable or bus, the current drain is
dominated by the current sourced into the line termination
resistors and any other devices on the bus. With a half-ter­mination (120 load) between the driver outputs, the load
current can be in excess of 13mA as the drivers force a
minimum of 1.5V across the line, and can be greater than
25mA with a fully terminated 60 line attached.

*In shutdown mode, driver and receiver outputs high impedance

SHUTDOWN MODE

If RE is taken high while DE is taken low, the device will
enter a low-power shutdown mode, in which the supply
current is typically 1µA.
If the driver outputs are active immediately before shut­down (DE high), the supply current will not drop to 1µ
until the driver outputs have settled to their three-state
mode, which can take up to 2.6µs worst-case. If DE is al­ready low and shutdown is entered by taking RE high, the
supply current will drop to 1µA very quickly.
When RE is taken low and/or DE is takem high, the de­vice will wake up within 3.5µs.

If shutdown mode is not used, the fact that DE is active­high and RE is active-low offers a convenient way of
switching the device between transmit and receive, by ty­ing DE and RE together. This is useful, for example, in
applications using half duplex operation and where several
receiver outputs are connected to a serial bus.

The device is guaranteed not to enter shutdown mode if
DE and RE are driven in this way. If DE is low and RE is
high for less than 50ns the device will not enter shutdown.
If DE is low and RE is high for greater than 600ns, the
device is guaranteed to enter shutdown.

RECEIVER INPUTS

The ADM1487 receiver has an input common-mode
range covering the entire RS-485 range of –7V to 12V.
Internal 96k input resistors from each line terminal to
ground provide a 1/8 unit load to the RS485 bus.

Differential signals greater than ±200mV within the speci­fied input common-mode range are converted to a TTL­compatible logic signal at the receiver output. A small
amount of input hysteresis is included to minimize the ef­fects of noise on the line signals. If the line is terminated
or the receiver inputs are shorted together, the receiver
output will retain the last valid line signal due to the
45mV of hysteresis incorporated in the receiver circuit. If
the receiver inputs are left floating (unterminated), an in­ternal pull-up of 10µA at the A input will force the re­ceiver output to a guranteed high output state.

DRIVER OUTPUT STAGE

The RS-485 specification requires that a transceiver with­stand common-mode voltages of up to 12V above or –7V
below system ground at the RS-485 line connections.

In addition, the transceiver must be protected against both
ESD and latch-up. This precludes the use of conventional

Rev. PrC –7–

ADM1487

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PRELIMINARY TECHNICAL DA T A

CMOS outout stages, which include parasitic diodes from
their driver outputs to each supply rail and can latch up
when these diodes conduct.

V

CC

SCHOTTKY

REVERSE-BIASED

WHEN OUTPUT

> V

PARASITIC

DIODE D

P

PARASITIC

DIODE D

P

CC+VD

SCHOTTKY

REVERSE-BIASED

WHEN OUTPUT

< GND - V

D

Figure 9. ADM1487 Driver Output Stage

The ADM1487 output includes Schottky diodes in series
with the positive supply to the drain of the P-channel output
device and in series with the drain of the N-channel output
device. These diodes prevent the P-channel's parasitic diode
from conducting when the output voltage exceeds V

CC

and
prevent the N-channel's parasitic diode from conducting
when the output voltage falls below ground.

SLEW RATE CONTROL

The driver output stage of the ADM1487 has a controlled
slew rate to minmize signal reflections on incorrectly termi­nated lines and to reduce electromagnetic interference (EMI).

CURRENT LIMIT AND THERMAL SHUTDOWN

The ADM1487 incorporates two protection mechanisms to
guard the drivers against short-circuits, bus contention or
other fault conditions. The first is a current-limited output
stage that protects the driver against short-circuits over the
entire common-mode voltage range by limiting the output
current to about 70mA. Under extreme fault condtions
where the current limit is not effective, a thermal shutdown
circuit puts the driver outputs into a high-impedance state if
the die temperature exceeds 150°C, and does not turn them
back on until the temperature has fallen to 130°C.

ENHANCED ESD PROTECTION

All Analog Devices parts incorporate protection against
electrostatic discharge (ESD) to protect the devices dur­ing handling, assembly and normal operation. In addition,
the ADM1487 has enhanced ESD protection up to ±10kV
on the A and B I/O pins to protect against severe opera­tional conditions such as line transients, connection and
disconnection.

APPLICATION INFORMATION

Figure 10 shows a typical application of the ADM1487.
This is a half-duplex RS-485/RS-422 network. Up to 254
additional ADM1487s can be connected along the cable
(termination resistors are only required at each end).

RECEIVER

OUTPUT

(RO)

RECEIVER

ENABLE

(RE)

DRIVER

ENABLE

(DE)

DATA

1

R

2

3

4

D

IN (DI)

ADM1487

Figure 10. Typical Half-Duplex RS-485/RS-422 Network

8-Pin Plastic Dual-In-Line Package (N-8)

0.430 (1 0. 92 )

0.348 (8 .84)

0.210 (5.33)
MAX

0.160 (4 .06)

0.115 (2 .93)

0.022 (0 .5 58 )

0.014 (0 .3 56 )

8

14

PIN 1

0.100

(2.54)

BSC

5

0.280 (7.11)

0.240 (6.10)

0.060 (1.52)

0.015 (0.38)

0.070 (1.77)

0.045 (1.15)

0.130
(3.30)
MIN

SEATING
PLANE

0.325 (8.25)

0.300 (7.62)

0.015 (0.381)

0.008 (0.204)

+5V
(V

CC

100n

8

B

7

R

T

6

A

5

)

CABLE TERMINATED

AT ENDS

+5V (V

B

B

A

A

100n

CC

R

T

)

ADDITIONAL

ADM1487s

OUTLINE DIMENSIONS

Dimensions shown in inches and (mm).

0.2440 (6.20)

0.2284 (5.80)

0.195 (4 .95)

0.115 (2 .93)

0.009 8 (0.25 )

0.004 0 (0.10 )

SEATING

PLANE

5

D

6

7

8

R

4

DI

3

DE

RE

2
1

RO

ADM1487

8-Pin SO Package (R-8)

0.1968 (5.00)

0.1890 (4.80)

85

PIN 1

0.0500
(1.27)

BSC

0.1574 (4.00)

0.1497 (3.80)

41

0.102 (2 .59)

0.094 (2 .39)

0.0192 (0.49)

0.0138 (0.35)

0.0098 (0.25)

0.0075 (0.19)

0.0196 (0.50)

0.0099 (0.25)

8
0

0.050 0 (1.27 )

0.016 0 (0.41 )

x 45

–8–

Rev. PrC