Manuale d’uso / di manutenzione del prodotto DS5001FP del fabbricante Maxim
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1 of 26 052302 Note: Some rev isions of this device may incorporate deviations fro m published specifications known as errata. Multiple revisi ons of any device m ay be simulta neously av ailable through various sales chann els. For inf ormation abou t device errata, click here: http://www.
DS5001FP 2 of 26 DESCRIPTION The DS5001FP 128k soft microprocessor chip is an 8051-compatible microp ro cessor based on NV RAM technology and designed for s ystems that need la rge quantities of nonvolatile memory. It provides full compatibility with the 8051 instructi on set, timers, serial port, and pa rallel I/O ports.
DS5001FP 3 of 26 Figure 1. BLOCK DI AGRA M.
DS5001FP 4 of 26 PIN DESCRIPTION 80-PIN MQ FP 44-PIN MQ FP SIGNAL DESCR IPTION 11, 9, 7, 5, 1, 79, 77, 75 31 (P0.5) P0.0–P 0.7 General-Purpose I/O Port 0. This port i s open- drain and cann ot drive a log ic 1. It requi res external pullups. Port 0 is also the m ultiplexed expanded address/ data bus.
DS5001FP 5 of 26 33, 35, 37 9 and A15 res pectively. 71, 69, 67, 65, 61, 59, 57, 55 28, 26, 24, 23, 21, 20, 19, 18 BD7–0 Byte-Wide Data-Bus Bits 7–0 . This 8-bit, bidirectional bus is combined with the nonmultiplex ed address bu s (BA14–0) to access NV SRA M.
DS5001FP 6 of 26 INSTRUCTION SET The DS5001FP executes an instruction set that is obj ect code-comp atible with the industry standard 8051 microcontro ller. As a result, software dev elopment pac kages such as assembler s and compiler s that have been written for the 8051 are compatible with the DS 5001FP.
DS5001FP 7 of 26 Figu re 3. ME MORY MA P IN PA RTITIONA BLE MODE (PM = 0) Note: Partitionable mode is not supported when MSEL pin = 0 (128kB mode)..
DS5001FP 8 of 26 Figure 4. MEM ORY MAP WITH PES = 1.
DS5001FP 9 of 26 Figure 5 illustrates a typical memo ry connection for a s ystem using a 128kB SRAM. Note that in this configuration, both program and data are stored in a common RAM chip Figure 6 shows a similar s ystem with using two 32kB SRAMs. The byte-wide addre ss bus connects to the SRAM address lines.
DS5001FP 10 of 26 Figure 6. DS5001FP CONNECTION TO 64k x 8 SRAM POWER M A N AGEMENT The DS5001FP monitors V CC to provide power-fail reset, earl y war ning power-f ail interrupt, and switc h over to lithium backup. It uses an internal band gap re ference in dete rmining the switch points.
DS5001FP 11 of 26 ABSOLUTE MA XIM UM RA TINGS* Voltage Range on An y Pin Re lative to Ground -0.3V to (V CC + 0.5V) Voltage Range on V CC Related to Ground -0.
DS5001FP 12 of 26 DC CHARACTERISTICS (continued) (T A = 0°C to +70°C; V CC = 5V ±10%) PARAM ETER SYMBOL MIN TYP MAX UNITS N OTES Input L eakage Current 0.
DS5001FP 13 of 26 AC C H AR AC T E R I S T I C S EXPANDED BUS MODE TIMING SPECIFICA TIONS (T A = 0°C to +70°C; V CC = 5V ±10%) # PARA METER SYMBOL MI N MAX UNITS 1 Oscillator Frequency 1/ t CLK 1.
DS5001FP 14 of 26 EXPANDED PROGRAM-MEMORY RE AD CYCLE EXPANDED DATA-M EMORY RE AD CYCLE.
DS5001FP 15 of 26 EXPANDED DATA-M EMORY WRI TE CYCLE.
DS5001FP 16 of 26 AC C H AR AC T E R I S T I C S (continued) EXTERNAL CLOCK DRIVE (T A = 0°C to +70°C; V CC = 5V ±10%) # PARA METER SYMBOL MIN MAX U NITS 28 External Clock-High Time at 12MHz at 16M.
DS5001FP 17 of 26 AC C H AR AC T E R I S T I C S (continued) POWER CYCLE TIME (T A = 0 °C to +70 °C; V CC = 5V ±10% ) # PARA METER SYMBOL MIN MAX U NITS 32 Slew Rate from V CCMI N to V LI t F 130 .
DS5001FP 18 of 26 AC C H AR AC T E R I S T I C S (continued) SERIAL PORT TIMING, MODE 0 (T A = 0°C to +70°C; V CC = 5V ±10%) # P ARAMETER SYMBOL MIN MAX UNITS 35 Serial-Port Clock-Cycle Time t SPCL.
DS5001FP 19 of 26 AC C H AR AC T E R I S T I C S (continued) BYTE-WIDE A DDRESS/DATA BUS TIMING (T A = 0°C to +70°C; V CC = 5V ±10%) # PARA METER SYMBOL MIN MA X UNITS 40 Delay to Byte- Wide Addres.
DS5001FP 20 of 26 BYTE-WIDE BUS TIMING RPC AC CHARACTERISTI CS, DBB READ (T A = 0°C to + 70°C; V CC = 5V ±10%) # PARA METER SYMBOL MIN MAX U NITS 54 CS , A 0 Setup to RD t AR 0n s 55 CS , A 0 Hold .
DS5001FP 21 of 26 RPC AC CHARACTERISTI CS, DBB WRITE (T A = 0°C to +70°C; V CC = 5V ±10%) # PARA METER SYMBOL MIN MAX U NITS 60 CS , A 0 Setup to WR t AW 0n s 61A CS , Hold After WR t WA 0n s 61B A.
DS5001FP 22 of 26 RPC TIMING MO DE.
DS5001FP 23 of 26 NOTES: All parameters appl y to both co mmercial and indus trial temperature operation unless otherwise noted. 1) All voltages are referenced to ground. 2) Maximum operating I CC is measured with all output pins disconnected; XTAL1 driv en with t CL KR , t CLKF = 10ns, V IL = 0.
DS5001FP 24 of 26 80-PIN MQFP MM DIM MIN M A X A -3 . 4 0 A1 0.25 - A2 2.55 2.87 B 0.30 0.50 C 0.13 0.23 D 23.70 24.10 D1 19.90 20.10 E 17.70 18.10 E1 13.
DS5001FP 25 of 26 44-PIN MQFP.
DS5001FP 26 of 26 REVISION HISTORY The following represent the key differenc es between 112795 and 073096 version of the DS5001 FP data sheet. Please r eview this summar y carefull y . 1) Chang e V CC02 specification from V LI - 0.5 to V LI - 0.65 (PCN F62501).
Un punto importante, dopo l’acquisto del dispositivo (o anche prima di acquisto) è quello di leggere il manuale. Dobbiamo farlo per diversi motivi semplici:
Se non hai ancora comprato il Maxim DS5001FP è un buon momento per familiarizzare con i dati di base del prodotto. Prime consultare le pagine iniziali del manuale d’uso, che si trova al di sopra. Dovresti trovare lì i dati tecnici più importanti del Maxim DS5001FP - in questo modo è possibile verificare se l’apparecchio soddisfa le tue esigenze. Esplorando le pagine segenti del manuali d’uso Maxim DS5001FP imparerai tutte le caratteristiche del prodotto e le informazioni sul suo funzionamento. Le informazioni sul Maxim DS5001FP ti aiuteranno sicuramente a prendere una decisione relativa all’acquisto.
In una situazione in cui hai già il Maxim DS5001FP, ma non hai ancora letto il manuale d’uso, dovresti farlo per le ragioni sopra descritte. Saprai quindi se hai correttamente usato le funzioni disponibili, e se hai commesso errori che possono ridurre la durata di vita del Maxim DS5001FP.
Tuttavia, uno dei ruoli più importanti per l’utente svolti dal manuale d’uso è quello di aiutare a risolvere i problemi con il Maxim DS5001FP. Quasi sempre, ci troverai Troubleshooting, cioè i guasti più frequenti e malfunzionamenti del dispositivo Maxim DS5001FP insieme con le istruzioni su come risolverli. Anche se non si riesci a risolvere il problema, il manuale d’uso ti mostrerà il percorso di ulteriori procedimenti – il contatto con il centro servizio clienti o il servizio più vicino.
