參數(shù)資料
型號: EC000UM
英文描述: EC000 Core User's Manual (SCM68000)
中文描述: EC000核心用戶手冊(SCM68000)
文件頁數(shù): 38/145頁
文件大?。?/td> 829K
代理商: EC000UM
Electrical Characteristics
MOTOROLA
EC000 CORE PROCESSOR USER’S MANUAL
7-3
251
ASB, DSB Negated to Data-Out Invalid (Write)
10
10
ns
261
Data-Out Valid to DSB Asserted (Write)
10
10
ns
274
Data-In Valid to Clock Low (Setup Time on Read)
5—5—
ns
281
ASB, DSB Negated to DTACKB Negated (Asynchronous Hold)
0
95
0
95
ns
28A1
Clock High to DTACKB Negated
95
95
ns
29
ASB, DSB Negated to Data-In Invalid (Hold Time on Read)
0—0—
ns
29A
ASB, DSB Negated to Data-In High Impedance (Read)
75
75
ns
30
ASB, DSB Negated to BERRB Negated
0—0—
ns
311,4
DTACKB Asserted to Data-In Valid (Setup Time on Read)
42
42
ns
32
HALTIB and RESETIB Input Transition Time
0
100
0
100
ns
474
Asynchronous Input Setup Time
5—5—
ns
481,2
BERRB Asserted to DTACKB Asserted
10
10
ns
53
Data-Out Hold from Clock High (Write)
0—0—
ns
55
RWB Asserted to Data Bus Impedance Change (Write)
0—0—
ns
563
HALTIB, RESETIB Pulse Width
10
10
clks
NOTES:
1.Actual value depends on clock period.
2.If #47 is satised for both DTACKB and BERRB, #48 may be ignored. In the absence of DTACKB, BERRB is an
asynchronous input using the asynchronous input setup time (#47).
3.For power-up, the MC68000 must be held in the reset state for 132 clock cycles to allow stablization of on-chip circuitry.
After the system is powered up, #56 refers to the minimum pulse width required to reset the processor.
4.If the asynchronous input setup time (#47) requirement is satised for DTACKB, the DTACKB asserted to data setup
time (#31) requirement can be ignored. The data must only satisfy the data-in to clock low setup time (#27) for the
following clock cycle.
5.ASB and DSB will be asserted from the rising edge of state 2 (S2) until the falling edge of state 7 (S7).
6.During a write, DSB will be asserted in state 4 (S4) and negated in S7.
7.With consecutive bus cycles, ASB and DSB are negated from the falling edge of S7 to the rising edge of S2.
Num
Characteristic
3.3 V
5.0 V
Unit
Min
Max
Min
Max
F
re
e
sc
a
le
S
e
m
ic
o
n
d
u
c
to
r,
I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
n
c
..
.
相關(guān)PDF資料
PDF描述
EC103B Sensitive SCRs
EC103B1 Sensitive SCRs
EC103B2 Sensitive SCRs
EC103B3 Sensitive SCRs
EC103D175 Thyristor Product Catalog
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
EC0010-000 制造商:TE Connectivity 功能描述:EC0010-000
EC001031 制造商:PHOENIX 制造商全稱:PHOENIX CONTACT 功能描述:Header, Nominal current: 12 A, Rated voltage (III/2): 320 V, Assembly: Soldering
EC001121 制造商:PHOENIX 制造商全稱:PHOENIX CONTACT 功能描述:Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 4, Pitch: 5mm, Connection method: Screw connection, Color: Black, Contact surface: Tin
EC001283 制造商:PHOENIX 制造商全稱:PHOENIX CONTACT 功能描述:Plug component, Nominal current: 12 A, Rated voltage (III/2): 320 V, Number of positions: 7, Pitch: 5.08 mm, Connection method: Solder/Slip-on connection, Color: green, Contact surface: Tin, Assembly: Direct mounting
EC0013-000 制造商:TE Connectivity 功能描述:EC0013-000