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参数资料
| 型号： | MR82C37A/B |
| 厂商： | INTERSIL CORP |
| 元件分类： | DMA控制器 |
| 英文描述： | 4 CHANNEL(S), 8 MHz, DMA CONTROLLER, CQCC44 |
| 封装： | CERAMIC, LCC-44 |
| 文件页数： | 15/24页 |
| 文件大小： | 430K |
| 代理商： | MR82C37A/B |
22
FN2967.2
March 20, 2006
82C37A
AC Test Circuits
AC Testing Input, Output Waveforms
FIGURE 13. COMPRESSED TRANSFER
FIGURE 14. RESET
Timing Waveforms (Continued)
CLK
S4
S2
(10)
TASM
(15)
TDCL
TRLRHC
(40)
TDCTR
(16)
TDCL
(15)
(10)
TASM
TDCTR
(16)
TDCTW
(17)
TRH (31)
TRS (32)
S2
S4
TRS (32)
TRH (31)
TDCTW
(17)
A0-A7
READ
WRITE
READY
VALID
(48) TRSTD
(50) TRSTW
(49) TRSTS
IOR
OR IOW
RESET
VCC
TEST CONDITION DEFINITION TABLE
PINS
V1
R1
C1
All Outputs Except EOP
1.7V
520
100pF
EOP
VCC
1.6k
50pF
TEST POINT
R1
V1
C1 (NOTE)
OUTPUT FROM
DEVICE UNDER
TEST
NOTE: Includes STRAY and FIXTURE Capacitance
NOTE: AC Testing: All AC Parameters tested as per test circuits.
Input RISE and FALL times are driven at Ins/V. CLK input
must switch between VIHC +0.4V and VILC -0.4V
VOH
VO -0.45
0.45
VOL
OUTPUT
L OR H
→ Z
VOH
2.0V
0.8V
VOL
INPUT
Z
→ L OR H
VIH + 0.4V
VIL - 0.4V
1.5V
VOH
VOL
OUTPUT
82C37A
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