20-668-0024 Rabbit Semiconductor, 20-668-0024 Datasheet - Page 336

• Manufacturer Part Number: 20-668-0024
• Description: IC CPU RABBIT4000 128-LQFP
• Manufacturer: Rabbit Semiconductor

Specifications of 20-668-0024

• Processor Type: Rabbit 4000 8-bit
• Speed: 60MHz
• Voltage: 2.5V, 2.7V, 3V, 3.3V
• Mounting Type: Surface Mount
• Package / Case: 128-LQFP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -
• Other names: 20-668-0022; 316-1078

The design considerations in Table 29-2 are based on 5 mil design rules and assume a sin-
gle conductor between solder lands.
326
Nominal Ball
Diameter
(mm)
Key
0.3
A
B
C
D
G
E
F
Solder Land Diameter
NSMD Defined Land Diameter
Land to Mask Clearance (min.)
Conductor Width (max.)
Conductor Spacing (typ.)
Via Capture Pad (max.)
Via Drill Size (max.)
Table 29-1. Ball and Land Size Dimensions
Tolerance
Variation
0.35–0.25
Table 29-2. Design Considerations
(mm)
Feature
(all dimensions in mm)
Ball Pitch
(mm)
0.8
Rabbit 4000 Microprocessor User’s Manual
Nominal Land
Diameter
(mm)
Recommendation
0.25
0.254 (0.010)
0.406 (0.016)
0.050 (0.002)
0.127 (0.005)
0.127 (0.005)
0.406 (0.016)
0.254 (0.010)
Variation
0.25–0.20
Land
(mm)