LPC2212 Philips Semiconductors (Acquired by NXP), LPC2212 Datasheet - Page 33

• Manufacturer Part Number: LPC2212
• Description: 16/32-bit Arm Microcontrollers; 128/256 KB Isp/iap Flash With 10-bit ADC And External Memory Interfacebased on a 16/32 Bit ARM7TDMI-STM Cpu With Real-time Emulation And Embedded Trace Support, Together With 128/256 Kilobytes (kB) of Embedded High Spe
• Manufacturer: Philips Semiconductors (Acquired by NXP)

Philips Semiconductors
Table 14:
9397 750 12747
Preliminary data
Access cycle
Standard read
Standard write
Burst read - initial
Burst read - subsequent 3
Standard read access specifications
Max frequency
f
f
f
f
MAX
MAX
MAX
MAX
------------------------------- -
t
------------------------------ -
t
------------------------------ -
t
----------------------------- -
t
WRITE
RAM
ROM
INIT
2
1
2
+
+
+
WST 1
WST 2
WST 1
+
1
+
+
+
20ns
20ns
20ns
Rev. 01 — 02 February 2004
5ns
16/32-bit ARM microcontrollers with external memory interface
WST setting
WST
integer
N/A
WST 1
WST 2
WST 1
0; round up to
t
------------------------------ - 2
t
------------------------------------------- -
t
----------------------------- - 2
RAM
WRITE
INIT
t
t
CYC
CYC
+
+
t
CYC
20ns
–
20ns
t
CYC
LPC2212/LPC2214
–
–
+
5
Memory access time
requirement
t
t
t
t
RAM
WRITE
INIT
ROM
© Koninklijke Philips Electronics N.V. 2004. All rights reserved.
t
t
t
CYC
CYC
CYC
t
CYC
–
20ns
2
2
+
+
1
+
WST 1
WST 1
WST 2
–
–
20ns
20ns
–
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5ns