3
Data Device Corporation
www.ddc-web.com
BU-65178/65179*/61688*/61689*
K-04/05-0
kohm
pF
Vp-p
Vpeak
5
0.860
10
2.5
0.20
0
V
V
V
6.0
7.0
Vcc+0.3
-0.3
-0.3
-0.3
ABSOLUTE MAXIMUM RATING
Supply Voltage
Logic +5 V
Transceiver +5 V (Note 12)
Logic
Voltage Input Range
TABLE 1. BU-65178/65179*/61588/61688*/61689*
SPECIFICATIONS
UNITS
MAX
TYP
MIN
PARAMETER
RECEIVER
Differential Input Resistance
(Notes 1-7)
Differential Input Capacitance
(Notes 1-7)
Threshold Voltage, Transformer
Coupled, Measured on Stub
Common Mode Voltage (Note 7)
Vp-p
Vp-p
Vp-p
mVp-p,
diff
mV
nsec
9
27
27
10
250
300
7
21
22
150
6
18
20
-250
100
TRANSMITTER
Differential Output Voltage
Direct Coupled Across 35
Ω,
Measured on Bus
Transformer Coupled Across
70
Ω, Measured on Bus:
• Standard Product = – XX0
• 1760 Amplitude Compliant
Product = – XX2
( Note 13 and Ordering
Information – Test Criteria)
Output Noise, Differential (Direct
Coupled)
Output Offset Voltage, Transformer
Coupled Across 70 ohms
Rise/Fall Time
V
V
µA
µA
µA
µA
µA
V
V
mA
mA
mA
mA
pF
pF
0.8
10
-84
-42
-100
-50
0.4
-6.4
-3.2
50
50
2.0
-10
-692
-346
-794
-397
2.4
6.4
3.2
LOGIC
VIH
VIL
IIH (Vcc = 5.5 V, VIN = Vcc)
IIH (Vcc = 5.5 V, VIN = 2.7 V)
SSFLAG/EXT_TRIG
All Other Inputs
IIL (Vcc = 5.5 V, VIN = 0.4 V)
SSFLAG/EXT_TRIG
All Other Inputs
VOH (Vcc = 4.5 V, VIH = 2.7 V,
VIL = 0.2 V, IOH = max)
VOL (Vcc = 4.5 V, VIH = 2.7 V,
VIL = 0.2 V, IOL = max)
IOL
DB15-DB0
A15-A0
MEMOE/ADDR_LAT
MEMWR/ZEROWAIT
DTREQ/16/8
DTACK/POLARITY_SEL
INT
READYD
IOEN
IOH
DB15-DB0
A15-A0
MEMOE/ADDR_LAT
MEMWR/ZEROWAIT
DTREQ/16/8
DTACK/POLARITY_SEL
INT
READYD
IOEN
CI (Input Capacitance)
CIO (Bi-directional signal input
capacitance)
TABLE 1. BU-65178/65179*/61588/61688*/61689*
SPECIFICATIONS (CONT.)
UNITS
MAX
TYP
MIN
PARAMETER
W
W
W
W
W
W
W
W
W
W
W
W
W
W
V
V
mA
mA
mA
mA
mA
mA
mA
mA
mA
mA
µs
µs
µs
µs
µs
µs
µs
µs
5.5
5.25
100
160
265
370
580
200
180
285
390
600
19.5
23.5
51.5
131
7
2.5
9.5
18.5
22.5
50.5
129.5
668
4.5
4.75
17.5
21.5
49.5
127
4
1553 MESSAGE TIMING
Completion of CPU Write (BC
Start)- to-Start of Next Message
BC Intermessage Gap (Note 8)
BC/RT/MT Response Timeout
(Note 9)
18.5 nominal
22.5 nominal
50.5 nominal
128.0 nominal
T Response Time (Note 11)
Transmitter Watchdog Timeout
0.115
0.64
0.93
1.22
1.81
0.230
0.64
0.93
1.22
1.80
0.18
0.42
0.66
1.14
0.5
0.88
1.11
1.33
1.97
1.0
0.99
1.22
1.45
1.90
0.28
0.51
0.75
1.22
POWER SUPPLY REQUIREMENTS
Voltages/Tolerances
BU-65178/61588X3
• +5 V (Logic)
• +5 V (Ch. A, Ch. B)
Current Drain (Total Hybrid)
BU-65178/65179/61588X0
• +5 V (Logic)
BU-65178/65179/61588X3
• +5 V (Logic, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
BU-61688*/61689X0*
• +5 V (Logic)
BU-61688*/61689X3*
• +5 V (Logic, Ch. A, Ch. B)
• Idle
• 25% Transmitter Duty Cycle
• 50% Transmitter Duty Cycle
• 100% Transmitter Duty Cycle
5.0
5.0
23
116
222
328
540
46
116
217
318
519
POWER DISSIPATION
Total Hybrid
BU-65178/65179/61588X0
• +5 V (Logic)
BU-65178/61588/65179X3
• Idle
• 25% Duty Cycle
• 50% Duty Cycle
• 100% Duty Cycle
BU-61688*/61689X0*
• +5 V (Logic)
BU-61688*/61689X3*
• Idle
• 25% Duty Cycle
• 50% Duty Cycle
• 100% Duty Cycle
Hottest Die
BU-65178/61588X3/65179X3*/
BU-61688*/61689X3*
• Idle
• 25% Duty Cycle
• 50% Duty Cycle
• 100% Duty Cycle
* Mini-ACE PLUS with 64K Words of RAM. RAM impact to Power
Supply is based on Host Processor activity; subtract 140 mA if Host
is idle.