PXAH40KFBE NXP Semiconductors, PXAH40KFBE Datasheet - Page 34

• Manufacturer Part Number: PXAH40KFBE
• Manufacturer: NXP Semiconductors

Specifications of PXAH40KFBE

• Cpu Family: XA
• Device Core: 80C51
• Device Core Size: 16b
• Frequency (max): 30MHz
• Interface Type: USART
• Program Memory Type: ROMLess
• Program Memory Size: Not Required
• # I/os (max): 32
• Number Of Timers - General Purpose: 2
• Operating Supply Voltage (typ): 3.3/5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 2.97V
• Instruction Set Architecture: CISC
• Operating Temp Range: -40C to 85C
• Operating Temperature Classification: Industrial
• Mounting: Surface Mount
• Pin Count: 100
• Package Type: LQFP
• Lead Free Status / Rohs Status: Compliant

Philips Semiconductors
1999 Sep 24
CASL, CASH
Single-chip 16-bit microcontroller
D[15:0]
ClkOut
RAS
OE
CAS (BHE/BLE)
RAS (CS)
A
ClkOut
WE
D
A
Note:
Note.
t
CHAV
t
CHSL
The processor can fetch from one to eight Words (1 Word = 2 bytes)
OE is inactive during all writes.
t
AVSL
t
CHAV
t
CHDV
RAS ADDRESS
t
AVSL
t
RAS ADDRESS
CHSL
t
Figure 13. DRAM Write (on 16-Bit Bus, also 8-Bit Write on 8-Bit Bus)
CHAV
t
CHSL
Figure 12. DRAM FPM (Fast Page Mode) Burst Code Fetch
t
t
CHAH
CHAH
t
CHSL
t
AVSL
t
CHSL
t
AVSL
CAS ADDRESS
Note 1
34
Valid Data
CAS ADDRESS
INSTRUCTION
t
t
CHAH
DIS
t
CHAV
Note 2
t
CHSH
t
CPWH
t
CHSH
CAS ADDRESS +2
t
DIS
t
CHSH
t
CHAH
Preliminary specification
INSTRUCTION
t
CHAH
t
t
CHAV
CHSH
XA-H4
SU01281
SU01282
Note 2