參數(shù)資料
型號: SZF2002HL
廠商: NXP SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: Low voltage 8-bit microcontroller with 6-kbyte embedded RAM
中文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP80
封裝: 12 X 12 MM, 1.40 MM HEIGHT, PLASTIC, SOT-315-1, LQFP-80
文件頁數(shù): 70/76頁
文件大?。?/td> 431K
代理商: SZF2002HL
1998 Aug 26
70
Philips Semiconductors
Product specification
Low voltage 8-bit microcontroller with
6-kbyte embedded RAM
SZF2002
Fig.30 External RAM access w.r.t. RAMCE, 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.
(4) Code fetch only if CE is active (not shown). CE and RAMCE are never active at the same time.
handbook, full pagewidth
MGM355
XCLK
CODE FETCH
(4)
WE
D0 to D7
A0 to A17
RAMCE
OE
A2/ALE
(1)
code in
code in
code in
data out
data in
CODE FETCH
(4)
WRITE( )/READ( )
CODE FETCH
(4)
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
tXCLKH
tXCLKL
t(CEL)
t(RCEL-OEL)
t(OEL)
t(RCEL-WEL)
t(WEL)
t(RCEH-OEH)
(2)
t(RCEH-WEH)
tsu(RCEL-D)
tsu(OEL-D)
tsu(D-SM)
th(WEH-D)
th(OEH-DZ)
tsu(DZ-OEL)
tsu(D-WEL)
t(RCEL-DV)
tsu(A-RCEL)
th(SM-D)
Data sample moment
(3)
Code sample moment
(3)
th(RCEH-A)
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