參數(shù)資料
型號: SZF2002
廠商: NXP Semiconductors N.V.
英文描述: Low voltage 8-bit microcontroller with 6-kbyte embedded RAM(帶6K字節(jié)嵌入RAM的低壓8位微控制器)
中文描述: 低電壓8位微控制器與6嵌入式RAM字節(jié)(帶6清音字節(jié)嵌入內存的低壓8位微控制器)
文件頁數(shù): 68/76頁
文件大?。?/td> 431K
代理商: SZF2002
1998 Aug 26
68
Philips Semiconductors
Product specification
Low voltage 8-bit microcontroller with
6-kbyte embedded RAM
SZF2002
Fig.29 External program memory access, w.r.t. CE, OE, and WE.
(1) A0 to A3 alternative functions (PSEN, ALE, WR and RD) show Debug mode timing; data bus carries low address on falling ALE edge.
(2) Skipped ALE pulse because of MOVX instruction.
(3) (Last) data sample moment.
handbook, full pagewidth
MGM354
XCLK
CODE FETCH
A0 to A17
D0 to D7
WE
CE
OE
A2/ALE
(1)
code in
code in
data out
data in
CODE FETCH
WRITE( )/READ( )
CODE FETCH
A3/PSEN
(1)
A0/RD
(1)
A1/WR
(1)
S1 to S6: one machine cycle
S6
S2
S3
S4
S5
S6
S2
S3
S4
S1
S1
S5
S4
tXCLKL
TCY(XCLK)
t(CEL-OEL)1
t(CEL-WEL)1
th(CEH-A)1
t(CEL-DV)3
tsu(A-CEL)4
tsu(A-CEL)1
th(CEH-A)4
th(SM-D)4
(3)
tsu(D-SM)4
tsu(CEL-D)2
tsu(D-SM)2
tsu(OE-D)2
tsu(DZ-OEL)
tsu(D-WEL)3
th(DZ-OEH)
t(WEL)1
t(OEL)1
t(CEL)1
t(CEH-OEH)4
t(CEH-OEH)1
(2)
tXCLKH
Code sample moment
th(SM-D)2
(3)
t(CEH-WEH)1
th(WEH-D)3
tsu(CEL-D)4
tsu(OE-D)4
code in
t(CEL-OEL)4
Data sample moment
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