AM186EM Datasheet, PDF (64/98 Pages) List of Unclassifed Manufacturers – MICROCONTROLLER BLOCK DIAGRAM

PRELIMINARY
SWITCHING CHARACTERISTICS over COMMERCIAL operating range
Read Cycle (33 MHz and 40 MHz)
Parameter
No. Symbol
Description
General Timing Requirements
1
t_DVCL Data in Setup
2
t_CLDX Data in Hold^(c)
General Timing Responses
3
t_CHSV Status Active Delay
4
t_CLSH Status Inactive Delay
5
t_CLAV AD Address Valid Delay and BHE
6
t_CLAX Address Hold
7
t_CLDV Data Valid Delay
8
t_CHDX Status Hold Time
9
t_CHLH ALE Active Delay
33 MHz
Min
8
3
0
0
0
0
0
0
10
t_LHLL ALE Width
t_CLCL – 10 = 20
11 t_CHLL ALE Inactive Delay
12
t_AVLL AD Address Valid to ALE Low^(a)
13
t_LLAX
AD Address Hold from ALE
Inactive^(a)
t_CLCH –2
t_CHCL– 2
14 t_AVCH AD Address Valid to Clock High
15 t_CLAZ AD Address Float Delay
16 t_CLCSV MCS/PCS Active Delay
17
t_CXCSX
MCS/PCS Hold from Command
Inactive^(a)
0
t_CLAX = 0
0
t_CLCH – 2
18 t_CHCSX MCS/PCS Inactive Delay
0
19
t_DXDL DEN Inactive to DT/R Low^(a)
0
20 t_CVCTV Control Active Delay 1^(b)
0
21 t_CVDEX DEN Inactive Delay
0
22 t_CHCTV Control Active Delay 2^(b)
0
23 t_LHAV ALE High to Address Valid
10
Read Cycle Timing Responses
24 t_AZRL AD Address Float to RD Active
0
25 t_CLRL RD Active Delay
0
26 t_RLRH RD Pulse Width
2t_CLCL – 15 = 45
27 t_CLRH RD Inactive Delay
28
t_RHLH RD Inactive to ALE High^(a)
0
t_CLCH – 3
29
t_RHAV
RD Inactive to AD Address
Active^(a)
t_CLCL – 10 = 20
59 t_RHDX RD High to Data Hold on AD Bus^(c)
0
66
t_AVRL A Address Valid to RD Low^(a)
2t_CLCL – 15 = 45
67 t_CHCSV CLKOUTA High to LCS/UCS Valid
0
68 t_CHAV CLKOUTA High to A Address Valid
0
Preliminary
40 MHz
Max
Min
5
2
15
0
15
0
15
0
25
0
15
0
0
15
t_CLCL – 5
= 20
15
t_CLCH –2
t_CHCL –2
0
15
t_CLAX = 0
15
0
t_CLCH – 2
15
0
0
15
0
15
0
15
0
7.5
0
15
0
2t_CLCL – 10 = 40
15
0
t_CLCH – 2
t_CLCL – 5
= 20
0
2t_CLCL – 10 = 40
15
0
15
0
Max
12
12
12
20
12
12
12
12
12
12
12
12
12
10
12
10
10
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes:
All timing parameters are measured at 1.5 V with 50 pF loading on CLKOUTA unless otherwise noted. All output test conditions
are with C_L = 50 pF. For switching tests, V_IL = 0.45 V and V_IH = 2.4 V, except at X1 where V_IH = V_CC – 0.5 V.
a Equal loading on referenced pins.
b This parameter applies to the DEN, INTA1–INTA0, WR, WHB, and WLB signals.
c If either spec 2 or spec 59 is met with respect to data hold time, the part will function correctly.
64
Am186/188EM and Am186/188EMLV Microcontrollers