MC74AC245 Datasheet, PDF (8/12 Pages) ON Semiconductor – OCTAL BIDIRECTIONAL TRANSCEIVER WITH 3-STATE INPUTS/OUTPUTS

MC74AC245, MC74ACT245
PACKAGE DIMENSIONS
0.15 (0.006) T U S
2X L/2 ²⁰
L
PIN 1
IDENT
1
0.15 (0.006) T U S
C
D
0.100 (0.004)
–T– SEATING
PLANE
20
1
Z
D
e
b
0.13 (0.005) M
TSSOP–20
DT SUFFIX
20 PIN PLASTIC TSSOP PACKAGE
CASE 948E–02
ISSUE A
20X K REF
0.10 (0.004) M T U S V S
11
B
–U–
10
A
–V–
GH
K
J J1 ÍÍÍÍÍÍK1ÍÍÍ
SECTION N–N
N
0.25 (0.010)
M
N
F
DETAIL E
DETAIL E
NOTES:
ąă1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
ąă2. CONTROLLING DIMENSION: MILLIMETER.
ąă3. DIMENSION A DOES NOT INCLUDE MOLD
FLASH, PROTRUSIONS OR GATE BURRS. MOLD
FLASH OR GATE BURRS SHALL NOT EXCEED
0.15 (0.006) PER SIDE.
ąă4. DIMENSION B DOES NOT INCLUDE
INTERLEAD FLASH OR PROTRUSION.
INTERLEAD FLASH OR PROTRUSION SHALL NOT
EXCEED 0.25 (0.010) PER SIDE.
ąă5. DIMENSION K DOES NOT INCLUDE DAMBAR
PROTRUSION. ALLOWABLE DAMBAR
PROTRUSION SHALL BE 0.08 (0.003) TOTAL IN
EXCESS OF THE K DIMENSION AT MAXIMUM
MATERIAL CONDITION.
ąă6. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
ąă7. DIMENSION A AND B ARE TO BE
DETERMINED AT DATUM PLANE -W-.
–W–
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A 6.40 6.60 0.252 0.260
B 4.30 4.50 0.169 0.177
C --- 1.20 --- 0.047
D 0.05 0.15 0.002 0.006
F 0.50 0.75 0.020 0.030
G
0.65 BSC
0.026 BSC
H 0.27 0.37 0.011 0.015
J 0.09 0.20 0.004 0.008
J1 0.09 0.16 0.004 0.006
K 0.19 0.30 0.007 0.012
K1 0.19 0.25 0.007 0.010
L
6.40 BSC
0.252 BSC
M 0_ 8_ 0_ 8_
EIAJ–20
M SUFFIX
20 PIN PLASTIC EIAJ PACKAGE
CASE 967–01
ISSUE O
11
E HE
10
A
LE
Q1
M_
L
DETAIL P
VIEW P
c
A1
0.10 (0.004)
NOTES:
ąă1. DIMENSIONING AND TOLERANCING PER ANSI
Y14.5M, 1982.
ąă2. CONTROLLING DIMENSION: MILLIMETER.
ąă3. DIMENSIONS D AND E DO NOT INCLUDE
MOLD FLASH OR PROTRUSIONS AND ARE
MEASURED AT THE PARTING LINE. MOLD FLASH
OR PROTRUSIONS SHALL NOT EXCEED 0.15
(0.006) PER SIDE.
ąă4. TERMINAL NUMBERS ARE SHOWN FOR
REFERENCE ONLY.
ąă5. THE LEAD WIDTH DIMENSION (b) DOES NOT
INCLUDE DAMBAR PROTRUSION. ALLOWABLE
DAMBAR PROTRUSION SHALL BE 0.08 (0.003)
TOTAL IN EXCESS OF THE LEAD WIDTH
DIMENSION AT MAXIMUM MATERIAL CONDITION.
DAMBAR CANNOT BE LOCATED ON THE LOWER
RADIUS OR THE FOOT. MINIMUM SPACE
BETWEEN PROTRUSIONS AND ADJACENT LEAD
TO BE 0.46 ( 0.018).
MILLIMETERS
INCHES
DIM MIN MAX MIN MAX
A
--- 2.05 --- 0.081
A1 _{0.05 0.20 0.002 0.008}
b 0.35 0.50 0.014 0.020
c 0.18 0.27 0.007 0.011
D 12.35 12.80 0.486 0.504
E 5.10 5.45 0.201 0.215
e
1.27 BSC
0.050 BSC
HE 7.40 8.20 0.291 0.323
L 0.50 0.85 0.020 0.033
LE 1.10 1.50 0.043 0.059
M
0 _ 10 _{_} 0 _ 10 _{_}
Q1 0.70 0.90 0.028 0.035
Z
--- 0.81 --- 0.032
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